Chapter Summaries

Key Plot Points and Events

• Duke infuses his Shadow Bug Pouch with magic power, summoning five Shadow Bugs.
• He discovers Shadow Bugs can be used for scouting, sentry duty, and have offensive capabilities.
• Duke estimates he can summon over 300 Shadow Bugs, enough to handle Third-Grade Wizard Apprentices.
• Duke meets with Simon and other Wizard Apprentices to discuss the upcoming assessment. Simon warns them about potential threats among their peers.

Character Developments

• Duke demonstrates his practical thinking and self-reliance by understanding Shadow Bugs' uses and not expecting much from the small group.
• Simon shows his leadership and preparation by organizing the meeting, gathering intelligence on potential threats, and devising a strategy.

Significant Themes

• Self-Reliance: Duke's trust in his own abilities over others.
• Preparation and Information: Simon's gathering of information and planning for the assessment.
• Social Hierarchy: The distinction between commoners and wizards, and the importance of background in Black Sail.

Character Interactions

• Duke and Simon's interaction shows their different approaches to the assessment and their alliance.
• The other Wizard Apprentices' disregard for Duke highlights the importance of background and social status.
• Simon warns the group about potential threats, fostering a sense of unity and caution among them.

Key Plot Points and Events

• Duke and Simon's group arrive at Academy Island for the Third-Grade Wizard Apprentice assessment.
• They board a ship with over three hundred other apprentices, heading to an unknown island for the assessment.
• Mr. Jode, their assessor, explains the task: find at least three out of five listed potion ingredients within three days.
• Duke and his group receive their task lists with unique ingredients.
• Jode reveals that they will be teleported randomly across the island, and Wizard Marks (communication devices) won't work.

Character Developments

• Duke demonstrates strategic thinking by immediately moving to join the teleportation line upon hearing the news.
• Simon shows leadership by suggesting they stick together for safety.

Significant Themes

• Survival of the Fittest: The assessment encourages competition and even conflict among apprentices, reflecting Black Sail's training system.
• Resource Acquisition: Apprentices can collect any potion ingredients they find, fostering a culture of plunder and resource hoarding.

Character Interactions

• Duke and Simon's group discuss their task lists and decide to stick together.
• Duke and Simon exchange a glance, understanding the true purpose of the assessment.
• Duke and other quick-reacting apprentices rush to join the teleportation line.

Key Plot Points and Events

• Duke and other Wizard Apprentices are teleported to an island for Black Sail's test.
• Duke arrives early and explores the island, finding a deep lake with a cavern beneath.
• He discovers an air-filled cave within the cavern, suitable for hiding, and spends the night there.

Character Developments

• Duke demonstrates his initiative, caution, and adaptability by exploring the island and finding a safe haven.
• The other Wizard Apprentices show varying levels of complaint and understanding when faced with the unfair teleportation process.

Significant Themes

• Unfairness and Cruelty: Jode's words emphasize the unfair nature of the world, reflecting Black Sail's pirate origins and the harsh reality of the magical world.
• Adaptation and Survival: Duke's actions highlight the importance of adapting to new environments and ensuring one's survival.

Character Interactions

• Duke interacts minimally with others, focusing on his own survival and preparation.
• The Wizard Apprentices on the ship interact with each other, complaining about the unfair teleportation process, and are addressed by Jode.

Key Plot Points and Events

• Duke uses Shadow Bugs to monitor the island's surface at night.
• Two Wizard Apprentices visit the lake without incident.
• A Frost Wolf, a Super-Tier Magical Beast, hunts and kills a Wizard Apprentice near the lake.
• Duke remains hidden underwater, avoiding the Frost Wolf's notice.
• The island remains quiet after the Frost Wolf's appearance.
• Duke surfaces at dawn, planning to gather magical herb materials.

Character Developments

• Duke demonstrates caution and strategic thinking, prioritizing his safety and task completion over unnecessary fights.
• The Frost Wolf showcases its intelligence and enjoyment in toying with its prey.

Significant Themes

• Survival and self-preservation in a dangerous environment.
• The power dynamics between humans and magical beasts.
• The importance of knowledge and preparation (Duke's understanding of herbs and the island's layout).

Character Interactions

• Duke observes the interactions between the two Wizard Apprentices and the Frost Wolf from a safe distance.
• Duke does not engage with other characters, maintaining his hidden position.

Key Plot Points and Events

• Duke successfully finds and collects Nightshadow Grass and Blood Moon Root, two ingredients for his potion quest.
• He encounters Wenn, a fellow Wizard Apprentice, who invites Duke to join Simon's group but Duke declines, suspecting Wenn's intentions.
• Duke spends the afternoon searching for Starlight Vine without success.
• At dusk, Duke runs into Simon's group, including Wenn, who had earlier claimed to have met Simon. Simon reveals they only just met Wenn.

Character Developments

• Duke demonstrates his caution and intuition by suspecting Wenn's dishonesty.
• Simon shows concern for his companions and shares information about their Enchanted Item that helped them reunite.

Significant Themes

• Trust and deception, as Duke suspects Wenn's true intentions.
• Convenience of magical abilities, as Duke uses his to create water and stay hydrated.

Character Interactions

• Duke and Wenn: Tense and guarded, with Duke suspecting Wenn's dishonesty.
• Duke and Simon: Friendly and open, with Simon sharing information and offering help.
• Simon, Abel, and Anli: United and supportive, working together and sharing resources (Starlight Vine).

Key Plot Points and Events

• Duke, Simon, Anli, and Abel find a complete Starlight Vine, which they decide to share.
• Uli, a powerful pureblood wizard, appears and takes the Starlight Vine, causing the group to back off to avoid conflict.
• Duke exposes Wenn as a traitor working with Uli, leading to Wenn's departure.
• The group decides to camp together for safety, with Duke suggesting they return for another Starlight Vine tomorrow.
• In the night, they hear a beast tide approaching and flee.

Character Developments

• Duke demonstrates his keen observation skills and quick thinking in exposing Wenn's betrayal.
• Simon shows decisive leadership in handling Uli's appearance and the subsequent betrayal.
• Anli and Abel show trust and loyalty to Duke and Simon, following their lead.

Significant Themes

• Bloodline discrimination: Uli's actions and Wenn's betrayal highlight the prejudice against half-blood wizards.
• Power dynamics: Uli's presence and the beast tide emphasize the importance of strength and caution in the wizarding world.
• Unity and trust: The group's decision to camp together and help each other shows the value of cooperation.

Character Interactions

• Duke and Simon: They work well together, with Duke providing keen insights and Simon making decisions.
• Duke and Uli: Their interaction shows Uli's power and Duke's caution.
• Wenn's betrayal: This event causes the group to distance themselves from Wenn and trust Duke even more.

Key Plot Points and Events

• A Beast Tide, a sudden mass migration of magical beasts, occurs on the island, triggered by an unknown event.
• Duke, a Third-Grade Wizard Apprentice, realizes the danger and decides to flee, leaving Simon and the others behind.
• Duke uses his physical prowess and magical abilities to outrun the beasts and reaches the shore, then dives into the sea to swim back to the cavern beneath the lake.
• On the ship outside the island, a female Wizard expresses concern for the Wizard Apprentices but is told they must face trials alone.
• Duke returns to the cavern, sends Shadow Bugs to investigate the surface, and decides to meditate and cultivate until it's safe to leave.
• The Beast Tide subsides before sunrise, leaving destruction and corpses in its wake.
• Uli, one of the Wizard Apprentices, arrives at the lake, injured and frightened, with only one enchanted item ring remaining.

Character Developments

• Duke demonstrates his resourcefulness, physical prowess, and magical abilities in escaping the Beast Tide.
• Uli shows his survival skills but is left injured and weakened after the Beast Tide.

Significant Themes

• Survival of the fittest: The Beast Tide serves as a harsh trial, weeding out the weak and forcing survivors to rely on their own abilities.
• The importance of self-reliance: The Wizards on the ship refuse to intervene, emphasizing the need for the Apprentices to face challenges alone.

Character Interactions

• Duke leaves Simon and the others behind, highlighting the lack of teamwork or coordination among the Apprentices.
• Uli's arrival at the lake suggests he might cross paths with Duke again, potentially leading to further interactions or conflicts.

Key Plot Points and Events

• Uli, a Jokic Family member, is pursued and killed by Merrick, a student of Third-Level Wizard Rand.
• Uli uses a Death-Substitute Strawman, a First-Level Wizard Artifact, to cheat death.
• Uli encounters Duke, a Wizard Apprentice, and demands his supplies.
• Duke kills Uli to defend himself and disposes of the body to avoid detection.

Character Developments

• Uli: Initially confident and aggressive, Uli's overconfidence leads to his demise. His hatred for Merrick grows after using his precious Death-Substitute Strawman.
• Merrick: Merrick's strength and confidence in his abilities are demonstrated as he easily defeats Uli.
• Duke: Duke shows resourcefulness and caution in handling Uli's corpse and the Spatial Ring, indicating his intelligence and self-preservation instincts.

Significant Themes

• Overconfidence leading to downfall (Uli)
• The value and importance of life (Uli's death and resurrection)
• The power dynamics between Wizard families and individuals (Uli vs. Merrick, Duke's caution with the Jokic Family)

Character Interactions

• Uli and Merrick: Their long-standing animosity culminates in a fight to the death.
• Uli and Duke: Duke's refusal to comply with Uli's demands leads to Uli's death.
• Merrick and Duke: Indirectly, Merrick's actions lead Duke to encounter Uli and become involved in the situation.

Key Plot Points and Events

• Duke decides not to keep Uli's Spatial Ring to avoid targeting by the Jokic Family.
• Duke retrieves his Starlight Vine and other potion ingredients from Uli's Spatial Ring, discovering Colorless Lizard eyeballs among them.
• Duke sends Uli's Spatial Ring into an undersea current and remains beneath the sea until the assessment ends.
• On the third day, the assessment concludes, and surviving Wizard Apprentices board the ship to return to Academy Island.
• Duke learns that Uli likely caused the Beast Tide and that Uli's body is missing.

Character Developments

• Duke demonstrates maturity and caution by not keeping Uli's Spatial Ring to avoid potential danger.
• Duke shows gratitude and willingness to help others by offering his extra potion ingredients to Simon's group.
• Uli's actions reveal his vicious nature and disregard for other Wizard Apprentices' lives.

Significant Themes

• Risk vs. Reward: Duke weighs the potential risks against the benefits of keeping Uli's Spatial Ring.
• Survival and Adaptation: Duke's decision to stay underwater highlights his ability to adapt and prioritize his safety.
• Consequences of Actions: Uli's actions lead to the deaths of many Wizard Apprentices and ultimately result in his own demise.

Character Interactions

• Duke and Simon's group reunite, and Duke offers to help them with their assessment tasks.
• Duke avoids Merrick, not wanting to draw his attention.
• Many Wizard Apprentices curse Uli for causing the Beast Tide, but none dare offend him.

Key Plot Points and Events

• Uli's death is reported, and Merrick is falsely accused.
• The Jokic Family issues a bounty for Merrick's head.
• Master Rand and the Jokic Family engage in a war of words through newspapers.
• Duke, aware of Uli's Death-Substitute Strawman Artifact, fears being discovered.
• Duke decides to improve his strength quickly to avoid potential trouble.

Character Developments

• Duke becomes more cautious and strategic, planning to enhance his strength to avoid future threats.
• Merrick remains unaware of Uli's true killer (Duke) and believes he is responsible.
• The Jokic Family and Master Rand engage in a power struggle, both seeking to gain from the situation.

Significant Themes

• Power dynamics and politics among wizard families and factions.
• The value of information and its manipulation for personal gain.
• The consequences of one's actions and the importance of decisiveness.

Character Interactions

• Duke's cautiousness and strategic thinking contrast with Merrick's arrogance and Uli's paranoia.
• The Jokic Family and Master Rand engage in a public dispute, each trying to gain the upper hand.
• Duke's actions indirectly influence the conflict between the Jokic Family and Master Rand.

Chapter Summary: Mental Power Stabilization Potion

Key Plot Points and Events

• Duke reflects on the high cost of Dawn Potions, which sell for around three hundred First-Level Magic Stones and significantly improve a Third-Grade Wizard Apprentice’s chances of advancing.
• He realizes that Black Sail’s dangerous assessment is designed to enforce survival of the fittest: stronger apprentices obtain more resources, while weaker ones are eliminated or left struggling. Luck matters, but only those with sufficient strength can seize opportunities.
• Rather than immediately purchasing a Dawn Potion, Duke decides to prepare properly. He enrolls in three inexpensive courses covering:
  • The secrets of life-level advancement
  • Common advancement problems
  • Magic power and energy fluctuations
• Through classes and secondhand books, Duke learns that wizard advancement involves breaking through the natural limits of one’s current Life Level. A Dawn Potion catalyzes this transformation, but failure can cause magic power and mental power to run wild, resulting in crippling or death. The survival rate is under three percent without sufficient preparation.
• The required mental power threshold for becoming a Second-Grade Wizard Apprentice is fifteen points. Duke claims to Vivian that he has reached exactly fifteen, concealing the fact that his true mental power is twenty.
• Duke tells Vivian he is preparing to advance and claims that he has already obtained enough Magic Stones for a Dawn Potion by selling an Enchanted Item.
• Vivian offers practical help instead of merely expressing concern. She sends Duke her teacher Grace’s detailed advancement notes, along with a valuable Mental Power Stabilization Potion that can reduce the risk of mental power becoming unstable during advancement.
• Duke recognizes that the potion is extremely valuable—worth roughly five or six hundred First-Level Magic Stones—and is normally an aid for advancing to the level of a Formal Wizard.

Character Developments

• Duke becomes more cautious and methodical. Although he has reached the required threshold, he does not rush into advancement and instead seeks knowledge and preparation.
• He continues to conceal the full extent of his abilities, reporting fifteen points of mental power instead of his actual twenty to avoid appearing abnormal or attracting suspicion.
• Duke gains a deeper understanding of the dangers and requirements of advancement, becoming more aware of the limitations imposed by Life Levels.
• Vivian demonstrates genuine concern and generosity toward Duke. She advises him to improve his mental power further, offers to provide Magic Stones, and ultimately gives him access to Grace’s notes and an expensive stabilization potion.
• Grace, though absent, is characterized as a highly knowledgeable mentor whose detailed notes provide information unavailable through ordinary academy instruction.

Significant Themes

• Survival of the fittest: Black Sail’s assessment deliberately creates an environment where strength and resourcefulness determine who prospers.
• Strength and opportunity: Luck can provide valuable opportunities, but one must possess enough power to recognize and exploit them.
• Preparation versus haste: Advancement is not merely a matter of reaching the required mental power; knowledge, resources, and careful preparation are essential for survival.
• Life-level limitations: Both knights and wizard apprentices eventually encounter natural limits. True advancement requires breaking through those limits and transforming one’s Life Level.
• Privilege of mentorship: Duke contrasts Vivian’s teacher-provided guidance with the impersonal, basic instruction available on Academy Island, emphasizing the value of personal teachers and inherited knowledge.
• Secrecy and self-protection: Duke continues hiding his true capabilities, showing his concern about the dangers of revealing too much.

Character Interactions

• Duke and Vivian: Duke informs Vivian of his advancement plans. She urges him not to advance prematurely and offers financial assistance. Duke declines, claiming he has already earned enough Magic Stones, but accepts her advancement notes. Vivian then sends him Grace’s notes and the Mental Power Stabilization Potion, strengthening their supportive relationship.
• Duke and Black Sail: Though Black Sail’s administrators do not interact directly with him in the chapter, Duke interprets the assessment as an intentional system designed to reward powerful and capable apprentices with resources.
• Duke and Grace: Their interaction is indirect. Grace’s notes and potion provide Duke with expert guidance and represent the benefits of having a strong mentor.

Chapter Summary: Advancement to Second-Grade Wizard Apprentice

Key Plot Points and Events

• Vivian, as Grace’s student, regularly receives abundant cultivation resources and shares a Mental Power Stabilization Potion with Duke despite its high cost.
• Wanting to advance safely, Duke rents a specialized meditation chamber on Academy Island. The chamber contains a meditation-enhancing formation and Ancient Elven Tree incense, though it is expensive at twenty Lesser Magic Stones per hour.
• Duke drinks the Mental Power Stabilization Potion, waits for it to take effect, and then carefully consumes the lethal Dawn Potion sip by sip while refining it with magic power.
• The potion causes intense heat and physical strain. Duke maintains control by circulating magic power and monitoring his body with mental power.
• During the advancement, he experiences an illusion of Vivian acting seductively. The Stabilization Potion keeps his mind clear, allowing him to dispel the illusion immediately.
• After roughly an hour, the advancement succeeds. Duke’s mental space expands, his Skill Tree’s surrounding area grows, and his body undergoes a qualitative transformation.
• He gains the ability to passively absorb surrounding energy particles, a trait normally associated with magical beasts and magical lifeforms.
• Duke also receives mysterious knowledge during the breakthrough, possibly a gift from the Wizard Plane to those who raise their Life Level.
• His attributes improve substantially:
  • Constitution: 12 → 15
  • Strength: 12.6 → 15.8
  • Agility: 12 → 15
  • Mental Power: 20.2 → 21.5

Character Developments

• Duke successfully advances to the second-grade Wizard Apprentice level. His preparation, knowledge of illusions, mental discipline, and careful use of the potions demonstrate his increasing competence and maturity.
• The advancement raises not only his mental power but also his physical abilities and Life Level, making him better adapted to magic and energy absorption.
• Duke becomes more determined to improve himself so he can eventually repay Vivian for her generosity.
• Vivian is shown to be frugal, hardworking, talented, and willing to provide Duke with valuable resources despite their expense.

Significant Themes

• Hard work and talent overcoming lack of background: Thorn Holy Tower’s examination-based rewards allow diligent apprentices like Vivian to obtain resources through merit.
• Preparation and caution: Duke’s successful advancement depends on careful study, the right environment, proper potion use, and mental control.
• Transformation through cultivation: Advancement is portrayed as more than an increase in spellcasting ability; it fundamentally changes the body, mind, and Life Level.
• The mysteries of wizard advancement: The knowledge Duke receives hints at a deeper connection between individual breakthroughs and the Wizard Plane.
• Reciprocity and gratitude: Vivian’s support motivates Duke to grow stronger and repay her in the future.

Character Interactions

• Vivian’s support directly enables Duke’s advancement by providing the expensive Mental Power Stabilization Potion.
• Although Vivian does not physically appear during the chapter, an illusion takes her form to tempt and distract Duke. He recognizes the deception and breaks free, showing both his mental strength and the importance of their connection in his thoughts.
• Duke’s relationship with Vivian is characterized by gratitude, trust, and an emerging desire to return her kindness.

Key Plot Points and Events

• Duke successfully advances to a Second-Grade Wizard Apprentice, gaining significant physical attribute boosts but feeling exhausted.
• After returning to his dorm, Duke sleeps deeply. Upon waking, he finds the dorm covered in centuries-old dust.
• He discovers an Evil Spirit outside his window, which the Evil Spirit Crown repels. Duke realizes he might have encountered the same mysterious deaths that occurred on Academy Island.

Character Developments

• Duke's physical attributes (Constitution, Strength, Agility) increase significantly upon advancement, but his mental power growth is less pronounced.
• Duke demonstrates resilience and calmness in the face of the unknown and dangerous Evil Spirit.

Significant Themes

• The power and danger of Evil Spirits.
• The importance of the Evil Spirit Crown's protective properties.
• The mystery surrounding the deaths of Wizard Apprentices on Academy Island.

Character Interactions

• Hana senses Duke's advancement upon his return but doesn't engage in a detailed conversation.
• Duke has no interaction with other characters in this chapter, as he faces the Evil Spirit alone.

Key Plot Points and Events

• Duke wakes up from a nightmare, finds his room cleaned, and realizes he's been asleep for an unknown duration.
• He sees Hana hanging laundry and remembers her face from his dream.
• Duke has a brief, awkward interaction with Hana, causing her distress.
• Duke decides to investigate his experience by reading about Evil Spirits and contacting Vivian.

Character Developments

• Duke: Struggles with understanding his recent experience, feels guilty for hurting Hana, and seeks answers.
• Hana: Initially cheerful and friendly, becomes hurt and upset by Duke's reaction, then flirts with him.

Significant Themes

• Fear and misunderstanding: Duke's fear of Hana after his dream leads to a misunderstanding between them.
• Advancement aftereffects: Duke considers whether his recent advancement caused his nightmare.
• The unknown: Duke's experience with the Evil Spirit is unusual and puzzling, leaving him seeking answers.

Character Interactions

• Duke and Hana: Their initial interaction is awkward and hurtful, but Hana later flirts with Duke, catching him off guard.
• Duke and Vivian: Duke contacts Vivian for help in understanding his experience, and she agrees to ask her teacher.

Key Plot Points and Events

• Duke apologizes to Hana, making her feel respected for the first time.
• Duke decides to sleep again to confront the Evil Spirit, buys the Holy Silver Sword, and enters the Nightmare Plane.
• He encounters the Evil Spirit, which looks like Hana, and defeats it using the Holy Silver Sword.
• A silver-white spirit, also looking like Hana, appears and reveals her true story.

Character Developments

• Duke: Shows remorse for his past behavior towards Hana and takes action to protect her.
• Hana (Evil Spirit): Reveals her tragic past and her true nature as an Evil Spirit created from her soul and negative energy.

Significant Themes

• Respect and remorse: Duke's apology to Hana highlights the importance of respect and his regret for his past behavior.
• Confronting one's past: Both Duke and Hana must face their past actions and their consequences.
• The power of negative energy: The Nightmare Plane transforms Hana's soul into an Evil Spirit, demonstrating the influence of negative emotions.

Character Interactions

• Duke and Hana (Evil Spirit): Duke's determination to protect Hana leads to a confrontation with the Evil Spirit, which ultimately reveals Hana's true story.
• Hana and Muse: Hana's past interaction with Muse leads to her tragic death and transformation into an Evil Spirit.

Key Plot Points and Events

• Hana's soul is split due to the Nightmare Plane's influence, with half becoming an Evil Spirit and the other half trapped in her body.
• The Evil Spirit kills many Wizard Apprentices in their sleep.
• Duke destroys the Evil Spirit with the Holy Silver Sword, causing Hana's soul to merge and dissipate.
• Duke buries Hana on a nearby island, as she has no other friends or family.
• Duke discovers the heart-shaped earring Hana gave him is a Plane Coordinate to the Nightmare Plane.

Character Developments

• Hana: Realizes her true nature and the harm she caused, feels remorse, and expresses gratitude towards Duke before her soul dissipates.
• Duke: Feels guilty for not being able to help Hana, decides to become stronger to honor her memory, and understands the danger of the Nightmare Plane.

Significant Themes

• Consequences of Ignorance: Hana's actions as an Evil Spirit and her eventual fate highlight the dangers of acting without knowledge or understanding.
• Redemption and Gratitude: Hana's final moments show her desire for redemption and her gratitude towards Duke, who treated her with respect.
• Isolation and Loneliness: Hana's lack of friends and family, and her isolation on Academy Island, emphasize the loneliness of her existence.

Character Interactions

• Duke and Hana: Duke's respect and kindness towards Hana lead her to see him as a source of hope and inspiration. Their bond deepens, with Hana leaving Duke the Plane Coordinate as a token of her trust and Duke burying her as a sign of his respect.
• Duke and Vivian/Grace: Duke receives advice from Grace through Vivian about the potential Evil Spirit, but he keeps Hana's death a secret from them.

Key Plot Points and Events

• Duke decides not to tell Vivian about the earring containing plane coordinates due to security concerns.
• Duke enrolls in Selene's course, "The Wizard Realm and the Infinite Planes," to learn about planes.
• Merrick provokes the Jokic Family, leading to an assassination attempt and a war of words between the families.
• Uli's corpse is scattered and untraceable, making it difficult for the Jokic Family to find any clues connected to Duke.
• Duke attends the course, where Selene begins explaining the basics of planes and their differences from planets.

Character Developments

• Duke shows caution and wisdom in handling sensitive information like plane coordinates.
• Merrick demonstrates recklessness and provocation against the Jokic Family.
• Selene is portrayed as knowledgeable, patient, and somewhat unkempt, typical of many Wizards in this world.

Significant Themes

• Caution and Wisdom: Duke's careful handling of information highlights the importance of discretion and foresight in the face of potential threats.
• Knowledge and Preparation: Duke's enrollment in Selene's course underscores the value of knowledge and preparation for future challenges.
• Power Dynamics: The conflict between Merrick and the Jokic Family illustrates the complex power dynamics at play among influential families and individuals.

Character Interactions

• Duke's interaction with Selene is limited to the classroom setting, with Selene acting as the instructor and Duke as a student.
• There's no direct interaction between Duke and other characters in this chapter, but the events involving Merrick and the Jokic Family indirectly affect Duke's situation.

Key Plot Points and Events

• The chapter introduces the ranking of planes: Minor, Lower, Middle, Higher, and Top.
• Duke learns that the Wizard Plane is a Middle Plane, with Level 6 powerhouses, aiming to become a Higher Plane.
• The Wizard Plane controls several Lower and Minor Planes, but faces threats from more powerful planes.
• Duke discovers that the Nightmare Plane, from which his earring originated, is a Top Plane and extremely powerful.

Character Developments

• Duke gains a broader understanding of the universe and the dangers it holds.
• He realizes the potential threat he posed to the Wizard Plane by attempting to enter the Nightmare Plane.
• Duke decides to refrain from using the earring and focuses on cultivating his powers.

Significant Themes

• The law of the jungle governs the Infinite Planes, where the strong prey on the weak.
• Survival and development are the primary goals for planes and their inhabitants.
• The Nightmare Plane's invincibility and mysterious nature are emphasized.

Character Interactions

• Duke interacts with his classmates and the stall vendors to gather information about planes.
• There's no direct interaction with other characters in this chapter, but Duke's thoughts and decisions are influenced by his newfound knowledge.

Key Plot Points and Events

• Duke's Deep Blue Tidal Meditation Method reaches level 4.
• Duke decides to improve his potion-making and alchemy skills for better profits and growth.
• Duke enrolls in 'An Introduction to the Basics of Potionology' and purchases necessary equipment.
• Duke attends his first potion-making class, taught by Jasmine, where he learns to brew a Basic Mana Restoration Potion.

Character Developments

• Duke demonstrates his dedication and patience in learning potion-making, even when facing challenges.
• Jasmine is introduced as a patient and skilled potion-making instructor.

Significant Themes

• The importance of continuous learning and skill improvement.
• The need for capital and opportunities to grind proficiency in profitable skills.
• The value of hands-on practice in learning experimental subjects.

Character Interactions

• Duke interacts with Jasmine, learning from her guidance and expertise.
• Duke observes his classmates' progress and learns from their successes and failures.

Key Plot Points and Events

• Duke successfully brews a Basic Mana Restoration Potion, understanding his mistake and learning from it.
• He realizes that brewing specific potions can be a skill, and starts to grind 'Basic Mana Restoration Potion' to increase proficiency and gain knowledge.
• Duke buys materials for ten Basic Mana Restoration Potions, aiming to sell them to support his grinding.
• He rents a laboratory on the island to brew potions safely and legally.
• Duke successfully brews six out of ten potions, sells them to a potion shop, and recovers his costs with a small profit.
• He encounters Leila, the woman who guided him when he first arrived at Academy Island, while selling his potions.

Character Developments

• Duke improves his potion-making skills and understands the process of grinding specific potions to gain knowledge and attribute points.
• He learns about the high costs and trial-and-error nature of the magical potion industry.
• Duke demonstrates his determination and patience by aiming for a 40% success rate in his first batch of sales potions.

Significant Themes

• The importance of learning from mistakes and continuous improvement.
• The high costs and risks associated with the magical potion industry.
• The value of grinding specific skills to gain knowledge and attribute points.

Character Interactions

• Duke interacts with Jasmine, his teacher, who helps him understand his mistake and assesses his potion's quality.
• He interacts with Leila, an acquaintance, while selling his potions at the shop.