Chapter Summaries

Key Plot Points and Events

• Matsuzaki-sensei, the teacher, is tricked into accepting a bribe of eight million yen from the Kondo Group yakuza.
• He decides to keep the money for himself and not spend it on a five-star hotel for the students.
• The club's floor manager arrives to inform them that the club is closing, and she tries to upgrade their experience to VIP status.

Character Developments

• Matsuzaki-sensei: Becomes greedy and corrupt after accepting the bribe, prioritizing his own interests over the students' well-being.
• Sagaru Yamazaki (Kondo Group Captain): Initially apologetic and concerned for the students' safety, but ultimately leaves them in Matsuzaki-sensei's care.

Significant Themes

• Corruption and greed: Matsuzaki-sensei's actions highlight the corrupting influence of money and power.
• Responsibility and duty: Matsuzaki-sensei's failure to uphold his duty as a teacher and prioritize the students' well-being is a central conflict.

Character Interactions

• Matsuzaki-sensei and Sagaru Yamazaki: Matsuzaki-sensei manipulates Yamazaki into leaving the students in his care, using the Kondo Group's name to pressure him.
• Matsuzaki-sensei and the floor manager: Matsuzaki-sensei becomes angry and aggressive when the floor manager tries to upgrade their experience, using the Kondo Group's name to intimidate her.

Key Plot Points and Events

• Matsuzaki-sensei, drunk, magnifies his greedy side and struggles to pay for his club members' excessive drinking at a high-end establishment.
• He tries to bluff his way using the Kondo Group's name but fails.
• He ultimately decides to leave but can't bear to waste the expensive alcohol, so he drinks it all himself and passes out.

Character Developments

• Matsuzaki-sensei's greed is amplified under the influence of alcohol.
• He shows reluctance to spend his hard-earned money and prioritizes his personal savings over his students' well-being.

Significant Themes

• The corrupting influence of alcohol and wealth.
• Greed and vanity.
• The struggle between personal desires and responsibility.

Character Interactions

• Matsuzaki-sensei interacts with the inner hall manager, trying to negotiate for his club members but ultimately fails.
• Matsuzaki-sensei's greed and stubbornness lead him to drink all the remaining alcohol instead of leaving it behind.

Key Plot Points and Events

• Matsuzaki-sensei, drunk, drinks more alcohol left nearby and gets even more intoxicated.
• He wakes up students and encourages them to drink with him, leading to a group drinking session.
• The group gets increasingly drunk and rowdy, eventually ending up naked and vomiting.
• Sogo Doma learns about Kondo Isao's misadventures from Sagaru Yamazaki.
• Eriri Sawamura flees the scene in shock, while Mashiro Shiina observes it as reference material.
• Matsuzaki-sensei, sobering up, tries to find an explanation for their situation.

Character Developments

• Matsuzaki-sensei: Initially portrayed as responsible, he's shown to be reckless and immature when drunk, leading to a chaotic situation.
• Sogo Doma: He remains calm and observant, comparing Eriri's and Mashiro's reactions to the situation.
• Eriri Sawamura: She's shown to be more emotional and less composed than Mashiro, reacting with shock and fleeing the scene.
• Mashiro Shiina: She demonstrates maturity and professionalism by observing the scene for artistic reference.

Significant Themes

• The consequences of reckless behavior (Matsuzaki-sensei's drinking leading to chaos).
• Comparison of characters' reactions and maturity (Eriri vs. Mashiro).
• The power dynamics and responsibilities of adults (Matsuzaki-sensei's attempt to cover up his actions).

Character Interactions

• Matsuzaki-sensei interacts with his students, encouraging them to drink with him and leading to a group drinking session.
• Sogo Doma interacts with Sagaru Yamazaki over the phone, learning about Kondo Isao's misadventures.
• Eriri Sawamura and Mashiro Shiina react differently to the same situation, highlighting their contrasting personalities.

Key Plot Points and Events

• Matsuzaki-sensei and his students get drunk and are found by Mafuyu Kirisu.
• Principal Yamamoto realizes Matsuzaki-sensei might be a mole planted by a rival school.
• Yamamoto decides to suppress the incident to avoid punishment for the students and potential backlash from parents.

Character Developments

• Matsuzaki-sensei: Maintains composure despite being caught in a compromising situation, trying to find a way out.
• Principal Yamamoto: Realizes the school is being targeted, decides to use schemes himself to protect Toyogasaki.

Significant Themes

• The cutthroat competition among schools for students and teachers.
• The use of schemes and tricks in competition, versus open and honest improvement.
• The consequences of excessive arrogance and blind confidence.

Character Interactions

• Matsuzaki-sensei and Principal Yamamoto: Matsuzaki-sensei tries to explain the situation to Yamamoto, who is suspicious and displeased.
• Matsuzaki-sensei and his students: The students look to Matsuzaki-sensei for guidance in this crisis.

Key Plot Points and Events

• The chapter is set during the Heisei era, a time of economic stagnation and societal disillusionment, leading to the rise of 'otaku' culture.
• Teacher Matsuzaki, in an attempt to instill the 'Showa spirit' in his students, organizes a team-building activity and subsequent workout sessions, which result in a scandal due to the students' vomiting and the presence of liquor bottles.
• Principal Yamamoto is called to investigate the incident, and Teacher Matsuzaki spins a tale about the students' voluntary participation and dedication to the 'Showa spirit.'

Character Developments

• Teacher Matsuzaki: He is portrayed as manipulative and deceitful, willing to deceive his students and the principal to achieve his goals. He is also shown to be a charismatic figure, as several students are eager to defend him.
• Principal Yamamoto: He is initially enraged by the scandal but maintains composure, suspecting a larger plot. He decides to suppress the issue to prevent Teacher Matsuzaki and his students from leaving the school.

Significant Themes

• Deception and Manipulation: Matsuzaki uses his charisma and lies to manipulate his students and the principal to achieve his goals.
• Loyalty and Betrayal: Matsuzaki's actions are seen as a betrayal by Principal Yamamoto, who vows to make Matsuzaki and his co-conspirators pay.
• Societal Disillusionment: The chapter explores the societal disillusionment and economic struggles of the Heisei era, leading to the rise of otaku culture.

Character Interactions

• Matsuzaki vs. Principal Yamamoto: Matsuzaki tries to deceive Principal Yamamoto, while Yamamoto suspects Matsuzaki's true intentions and vows to expose him.
• Matsuzaki vs. Students: Matsuzaki manipulates his students into defending him, showing his charismatic influence over them.
• Students vs. Principal Yamamoto: The students initially fear Principal Yamamoto's reaction but later defend Matsuzaki when they believe Yamamoto is buying Matsuzaki's explanation.

Key Plot Points and Events

• Matsuzaki-sensei's declaration of loyalty to the Kondo Group causes a scandal.
• Principal Yamamoto sees through the plot and devises a countermeasure to turn the situation around.
• The club members, initially disheartened, gain newfound respect for Matsuzaki-sensei and decide to support him.
• Principal Yamamoto publicly praises Matsuzaki-sensei and offers him preferential treatment, aiming to make the enemy raise Matsuzaki's price and turn on each other.

Character Developments

• Matsuzaki-sensei: Initially seen as mediocre and incompetent, his actions reveal him to be a noble and trustworthy character, admired by the students and principal.
• Principal Yamamoto: Shows his wisdom and cunning by turning the situation to his advantage and using Matsuzaki-sensei as bait to expose the enemy's plot.
• Club members: Realize the value of Matsuzaki-sensei's teachings and decide to support him, driven by a desire to clear their names and seek revenge on Sogo Doma.

Significant Themes

• Trust and loyalty: Matsuzaki-sensei's actions and the principal's response highlight the importance of trust and loyalty in their respective roles.
• Appearances vs. reality: Matsuzaki-sensei's true character is revealed to be far different from the rumors, emphasizing the theme of not judging a book by its cover.
• Manipulation and counter-maneuvers: Both Matsuzaki-sensei and Principal Yamamoto employ strategies to outmaneuver their opponents, showing the complex dynamics of power and influence.

Character Interactions

• Matsuzaki-sensei and Principal Yamamoto: Their interaction reveals the principal's shrewdness and Matsuzaki-sensei's ability to keep calm under pressure.
• Matsuzaki-sensei and the club members: The students' newfound respect for Matsuzaki-sensei leads to a stronger bond between them, with the students now committed to supporting him.
• The students and Sogo Doma: The students' anger towards Sogo Doma for escaping blame leads them to plot revenge against him.

Key Plot Points and Events

• Principal Yamamoto suspects Mr. Matsuzaki of being a mole sent to sabotage Toyogasaki High School.
• Matsuzaki presents an absurd explanation for the drinking party, which Principal Yamamoto initially disbelieves but later uses to his advantage.
• The principal brings up the expensive liquor bottles as evidence, putting Matsuzaki and the students in a tight spot.

Character Developments

• Principal Yamamoto shows his cunning and insight, seeing through Matsuzaki's scheme and using it to protect the school's image.
• Matsuzaki demonstrates his calm and collected demeanor, even under pressure, further fueling Principal Yamamoto's suspicions.
• The students show their loyalty to Matsuzaki, believing in him even when the evidence seems against them.

Significant Themes

• Manipulation and Scheming: Matsuzaki's calculated plan to frame the students and shift blame, as well as Principal Yamamoto's counter-scheme to protect the school.
• Trust and Loyalty: The students' unwavering trust in Matsuzaki, even in the face of adversity.
• Appearance vs. Reality: The discrepancy between Matsuzaki's calm demeanor and his true intentions, as well as the empty liquor bottles being used to mislead.

Character Interactions

• Matsuzaki and Principal Yamamoto engage in a battle of wits, each trying to outmaneuver the other.
• The students look to Matsuzaki for guidance and support, highlighting their loyalty and dependence on him.
• Principal Yamamoto observes the students' reactions, using their body language and expressions to deduce Matsuzaki's scheme.

Summary

Key Plot Points and Events

• Teacher Matsuzaki uses a "whip and candy" approach to manipulate students and the principal.
• Students are punished for an incident involving alcohol bottles, with Matsuzaki defending them.
• Principal Yamamoto sees through Matsuzaki's scheme but plays along to expose him later.
• Matsuzaki claims he drank all the alcohol alone to protect the students, which Principal Yamamoto surprisingly believes.

Character Developments

• Principal Yamamoto: Shows cunning and shrewdness, able to see through Matsuzaki's schemes and plans to counter them.
• Teacher Matsuzaki: Demonstrates manipulative behavior, trying to gain students' affection while putting them in harm's way. He underestimates Principal Yamamoto's intelligence.
• Students: Initially manipulated by Matsuzaki, they become more aware of his true character and the school's rules.

Significant Themes

• Manipulation and deception vs. honesty and transparency.
• The consequences of underestimating one's opponent.
• The importance of truth and fairness in maintaining trust and authority.

Character Interactions

• Principal Yamamoto vs. Teacher Matsuzaki: A battle of wits and schemes, with Yamamoto ultimately outmaneuvering Matsuzaki.
• Teacher Matsuzaki vs. Students: Matsuzaki manipulates students for his gain, but they begin to see through his lies.
• Students vs. Principal Yamamoto: Initially resentful of the school, students come to recognize Yamamoto's fairness and the school's rules.

Key Plot Points and Events

• Teacher Matsuzaki initially lies about empty liquor bottles being fitness equipment to cover up students' alcohol consumption.
• Principal Yamamoto sees through Matsuzaki's lie but plays along to protect the school's reputation.
• Yamamoto turns the incident into a positive, promoting the students' "self-training" spirit and rewarding Matsuzaki for his "supervision."

Character Developments

• Teacher Matsuzaki: Realizes the adult world is about interests, not right or wrong. Understands Yamamoto's superior scheming skills.
• Principal Yamamoto: Proves his wisdom and political acumen by turning a potential scandal into a school-wide commendation.

Significant Themes

• Appearance vs. Reality: Yamamoto and Matsuzaki both understand the importance of appearances in maintaining reputation and order.
• Adaptability: Both characters demonstrate their ability to adapt and change their stance when necessary.

Character Interactions

• Yamamoto and Matsuzaki: Engage in a silent battle of wits, with Yamamoto outmaneuvering Matsuzaki at every turn.
• Students and Matsuzaki: Students are initially confused by Matsuzaki's changing story but ultimately respect his ability to turn the situation around.

Key Plot Points and Events

• Sogo Doma, the only boy in his class, is the center of attention due to an incident involving his male classmates.
• Yukino Yukinoshita suspects Sogo's involvement and threatens to investigate him.
• Sogo denies any involvement, and a confrontation ensues between him and Yukino.
• Utaha Kasumigaoka is bewildered and confused by the incident and Yukino's behavior.

Character Developments

• Sogo Doma feels uncomfortable and bored under the constant scrutiny of his female classmates.
• Yukino Yukinoshita shows determination and suspicion towards Sogo, hinting at a possible personal motive.
• Utaha Kasumigaoka becomes increasingly protective of Sogo and challenges Yukino's accusations.

Significant Themes

• Perception vs. Reality: Sogo is perceived as guilty by association, but he denies any involvement.
• Suspicion and Accusation: Yukino's accusations are based on circumstantial evidence, leading to tension and mistrust.
• Protective Instincts: Utaha's behavior suggests a growing attachment to Sogo, leading her to defend him against Yukino's accusations.

Character Interactions

• Sogo Doma and Yukino Yukinoshita: Their confrontation reveals a power struggle and hints at a deeper conflict between them.
• Utaha Kasumigaoka and Yukino Yukinoshita: Their argument suggests a rivalry or competition, with Utaha becoming increasingly protective of Sogo.
• Classmates and Sogo Doma: The girls in Sogo's class either express concern or curiosity about his involvement in the incident, leading to increased scrutiny and gossip.

Key Plot Points and Events

• Yukino Yukinoshita's unusual behavior hints at her feelings for Sougo Doma.
• Utaha Kasumigaoka reveals that Sougo was not involved in the morning's events, causing speculation about his relationship with his classmates.
• Ako Tamaki confesses to having confessed to Sougo in the past, revealing she transferred schools to be with him.
• Mashiro Shiina expresses interest in learning to "poach" someone, further fueling the romantic tension.

Character Developments

• Yukino Yukinoshita: Shows signs of liking Sougo Doma, but remains reserved about her feelings.
• Utaha Kasumigaoka: Attempts to protect her relationship with Sougo by spreading rumors about Yukino's feelings, but also shows concern for his well-being.
• Ako Tamaki: Reveals her past confession to Sougo and her determination to win him back.
• Mashiro Shiina: Expresses interest in learning to pursue someone she likes, showing growth in her understanding of relationships.

Significant Themes

• Love and relationships: The chapter explores the complexities of romantic feelings, with multiple characters vying for Sougo's attention.
• Communication and honesty: Characters struggle with expressing their true feelings, leading to misunderstandings and tension.
• Personal growth: Mashiro's development shows that characters are learning and changing throughout the story.

Character Interactions

• Utaha and Yukino: Rivals in love, with Utaha trying to protect her relationship with Sougo while Yukino remains reserved about her feelings.
• Ako and Mashiro: Both express interest in Sougo, with Ako feeling protective of her past confession and Mashiro showing curiosity about relationships.
• The classmates: Engage in gossip and speculation about Sougo's relationships, further fueling the romantic tension.

Key Plot Points

• Utaha Kasumigaoka feels threatened by other girls' interest in Sogo Doma, especially Yukino Yukinoshita and Mashiro Shiina.
• Ako Tamaki's relationship with Umaru (U, M, R) is hinted at, causing confusion and shock among the girls.
• Shizuka Hiratsuka suspects Sogo Doma's involvement in the morning's incident, despite lacking solid evidence.

Character Developments

• Utaha Kasumigaoka: Realizes she has formidable rivals for Sogo Doma's attention and feels jealous and frustrated.
• Mashiro Shiina: Shows understanding of social norms and reassures Ako Tamaki about Umaru.
• Shizuka Hiratsuka: Struggles to maintain composure due to anger and frustration, revealing her personal feelings about Sogo Doma's actions.

Significant Themes

• Competition and jealousy among female characters for Sogo Doma's attention.
• The consequences of Sogo Doma's actions on those around him, particularly Shizuka Hiratsuka.

Character Interactions

• Utaha Kasumigaoka and other girls: Competitive and wary of each other's intentions towards Sogo Doma.
• Mashiro Shiina and Ako Tamaki: Mashiro reassures Ako about Umaru's relationship status.
• Shizuka Hiratsuka and Yukino Yukinoshita: Discuss Sogo Doma's possible involvement in the morning's incident, with Shizuka expressing her frustration and anger.

Summary

Key Plot Points and Events

• Shizuka Hiratsuka wakes up in a good mood and appreciates Nanami Aoyama's housekeeping skills.
• She reflects on her students' shortcomings compared to Aoyama's dedication and hard work.
• Hiratsuka discovers a scandal at school involving male students and a teacher named Matsuzaki.

Character Developments

• Shizuka Hiratsuka: Recognizes her students' lack of drive and compares them unfavorably to Aoyama. Feels a mix of pride and shock upon learning about the school incident.
• Nanami Aoyama: Shows competence and dedication in her part-time job, impressing Hiratsuka.

Significant Themes

• The importance of hard work and dedication in pursuing dreams, as seen through Aoyama's character.
• The consequences of poor judgment and lack of responsibility, illustrated by the school incident.

Character Interactions

• Shizuka Hiratsuka and Nanami Aoyama: Develop a friendly rapport as Hiratsuka comes to appreciate Aoyama's skills and work ethic.
• Shizuka Hiratsuka and her colleagues: Share shock and concern over the school incident, leading to a collective crisis of confidence.

Key Plot Points and Events

• Shizuka Hiratsuka discovers that all the students involved in the recent incident at Toyogasaki are members of Sogo Doma's Oolong Tea Research Club.
• She realizes that Sogo Doma might be behind the incident and tries to figure out his motive.
• Yukino Yukinoshita confirms Shizuka's suspicions and reveals Sogo Doma's troubled past, including the Chiba Shinbu Elementary School incident.

Character Developments

• Shizuka Hiratsuka shows her keen observation and deductive skills, as well as her determination to uncover the truth behind the incident.
• Yukino Yukinoshita displays her deep-seated prejudice against Sogo Doma, revealing her personal history with him.

Significant Themes

• The theme of motive and understanding the reasons behind people's actions is central to this chapter.
• The consequences of one's actions and the importance of role models in education are also explored.

Character Interactions

• Shizuka Hiratsuka and Yukino Yukinoshita work together to understand Sogo Doma's involvement in the incident, leading to a tense exchange of information and opinions.
• Shizuka's frustration with Sogo Doma's apparent ease in finding happiness contrasts with her own struggles, highlighting the theme of envy and comparison.

Key Plot Points

• Yukino reveals she was a student at Shinbu Elementary during the incident.
• She recounts how her indoor shoes were stolen, stopping after Sogo Doma transferred in.
• Yukino believes Sogo Doma orchestrated the entire incident.

Character Developments

• Yukino: Stands by her belief that Sogo Doma was behind the incident, despite others' doubts.
• Shizuka Hiratsuka: Initially skeptical, she starts considering Yukino's perspective.

Significant Themes

• Manipulation and control: Sogo Doma's alleged game of manipulating people's hearts.
• Beneficiaries: The idea that some people might have benefited from the incident.

Character Interactions

• Yukino and Shizuka Hiratsuka: They discuss the incident, with Shizuka Hiratsuka challenging Yukino's perspective.
• Yukino and Sogo Doma: Their past interaction is hinted at, with Yukino warning Sogo Doma not to talk to her.

Key Plot Points and Events

• Shizuka Hiratsuka reveals that Sogo Doma caused an incident and isn't in the classroom.
• Yukino Yukinoshita deduces that Doma is on the rooftop.
• Shizuka Hiratsuka and Yukino have a brief conversation about Yukino's academic performance and her feelings about her sister, Haruno.

Character Developments

• Yukino Yukinoshita: Struggles with her feelings about her sister's success and her own flat chest, leading to a moment of insecurity.
• Shizuka Hiratsuka: Shows concern for her students' well-being and determination to address Doma's actions.

Significant Themes

• Insecurity and self-doubt (Yukino's feelings about her sister and her physical appearance).
• The struggle between personal ideals and reality (Yukino's desire to forge her own path vs. her sister's success).
• The consequences of one's actions (Doma's past and current behavior).

Character Interactions

• Yukino and Shizuka: Despite their differing views, they share a moment of understanding, with Shizuka showing empathy towards Yukino's insecurities.
• Yukino and Doma: Their past interactions are hinted at, suggesting a complex relationship.

Key Plot Points and Events

• Yukino Yukinoshita reminisces about her first encounters with Sogo Doma and the changes in her school life after his arrival.
• She recalls how Sogo Doma isolated the class, creating a new target for bullying, Rongyuan Nanako, who becomes known as Yumiko Miura.
• Yukino realizes something is wrong with the situation but struggles to pinpoint it. She discusses it with Sogo Doma, who reveals he orchestrated the changes as a "game."

Character Developments

• Yukino begins to question her past beliefs and the actions of Sogo Doma, feeling unsettled by new information.
• Sogo Doma is revealed to be manipulative and calculating, using others' desires to control situations.

Significant Themes

• The power dynamics of social groups and bullying.
• The manipulation of truth and perception.
• The consequences of inaction and passivity.

Character Interactions

• Yukino and Sogo Doma's relationship evolves from hostility to a tense, uneasy alliance.
• Yukino's interactions with her sister and mother highlight their influence on her worldview.
• Yukino's observations of Rongyuan Nanako and the class reveal the dynamics of peer pressure and social manipulation.

Key Plot Points and Events

• Yukino Yukinoshita reflects on her past interactions with Sogo Doma.
• She realizes that she was the one who instigated their first argument.
• She remembers how Sogo Doma's presence improved her school life.
• She considers Sogo Doma's perspective and understands his actions were to protect her.

Character Developments

• Yukino Yukinoshita: She begins to question her initial perception of Sogo Doma and starts to understand his motivations.
• Sogo Doma: His past actions are revealed to be driven by a desire to protect Yukino from isolation and bullying.

Significant Themes

• Perspective: The chapter emphasizes the importance of considering different viewpoints to understand people's actions and motivations.
• Protection and Sacrifice: Sogo Doma's actions highlight his willingness to protect Yukino, even at his own expense.
• Misunderstandings: The characters' past interactions were driven by misunderstandings, which led to a misjudgment of Sogo Doma's character.

Character Interactions

• Yukino Yukinoshita and Sogo Doma: Their past interactions are reevaluated, showing Sogo Doma's protective nature towards Yukino.
• Yukino Yukinoshita and her family/schoolmates: Their influence on Yukino's perception of Sogo Doma is explored.

Key Plot Points and Events

• Yukino Yukinoshita realizes Sogo Doma's true intentions behind giving her a cat (Pankeli) and understands her family's actions regarding the cat and the missing ledger.
• She decides to confront Sogo Doma on the rooftop.
• Shizuka Hiratsuka arrives on the rooftop, looking for Sogo Doma regarding a blind date, but he manipulates her into revealing her availability for the weekend.
• Sogo Doma calls Taihei Doma, his older brother, and asks for a favor.

Character Developments

• Yukino Yukinoshita: Realizes Sogo Doma's feelings for her and decides to confront him.
• Sogo Doma: Continues to manipulate and outsmart others, including Shizuka Hiratsuka and Taihei Doma.
• Shizuka Hiratsuka: Reveals her eagerness for the blind date, losing her composure.
• Taihei Doma: Maintains a calm demeanor despite Sogo Doma's provocation.

Significant Themes

• Manipulation and deception: Sogo Doma continues to use others for his purposes.
• Love and jealousy: Yukino Yukinoshita's feelings for Sogo Doma and her jealousy of other girls around him.
• Family dynamics: The relationship between Sogo Doma and Taihei Doma, as well as the Yukinoshita family's actions regarding Pankeli.

Character Interactions

• Yukino Yukinoshita and Sogo Doma: Yukino decides to confront Sogo Doma about his true intentions.
• Shizuka Hiratsuka and Sogo Doma: Sogo Doma manipulates Shizuka into revealing her availability for the weekend.
• Sogo Doma and Taihei Doma: Sogo Doma calls Taihei to ask for a favor, provoking him in the process.

Key Plot Points and Events

• Taihei Doma, the eldest brother, is upset that his younger sister, Umaru, no longer calls him 'oni-chan' but addresses him as 'oni-san', preferring to call their younger brother, Sogo, 'oni-chan'.
• Taihei reflects on their past, recalling when Sogo was foolish and he was proud of being the 'Demon Taihei' due to his academic prowess.
• Taihei discovers that the Doma Family has become prosperous, which he finds confusing as he believes Sogo squanders money recklessly.
• Taihei learns that Sogo's lavish spending is funded by a large allowance he receives from their father.

Character Developments

• Taihei Doma: Becomes disillusioned with his younger brother, Sogo, after he becomes clever and replaces Taihei as Umaru's 'oni-chan'. Taihei feels jealous and resentful, leading him to observe Sogo's behavior closely.
• Sogo Doma: Revealed to be lazy, a couch potato, and extravagant, but also very good at sweet-talking people. He loves teasing others and has a mysterious source of income for his large allowance.

Significant Themes

• Jealousy and Resentment: Taihei feels jealous of Sogo's relationship with Umaru and resentful of his lavish lifestyle.
• Money and Power: The amount of money Sogo spends and his ability to secure a large allowance from their father contribute to Taihei's feelings of inadequacy and resentment.

Character Interactions

• Taihei and Sogo: Taihei feels increasingly resentful towards Sogo, leading him to observe Sogo's behavior closely. Their relationship is strained due to Taihei's jealousy.
• Taihei and Umaru: Taihei feels upset and distant from Umaru, who no longer addresses him as 'oni-chan'. Their relationship is tense due to Taihei's feelings of inadequacy and Umaru's preference for Sogo.