Rudy

Biodata

Feature	Information
Name	Rudy
Alias(es)	Rudeus Greyrat; Rudeus Notos Greyrat; Magic King
Gender	Male
Occupation/Role	Mage; former student at Ranoa University of Magic; head of the Notos Family; subordinate of Orsted; one of the Seven Great Powers
Affiliation	Ranoa University of Magic; Notos Family; Dragon God faction
Status	Alive
First Appearance	Chapter 17

Power Progression

Stage	Advancement	Details
Childhood	Chantless attack magic	Learns to cast attack magic without incantations and develops exceptional mana reserves from childhood. 27
Before the Teleportation Incident	Water Saint-tier magician	Reaches Water Saint-tier in water magic while remaining only Beginner-tier in Sword God Style. 27 29
Demon Continent journey	Demon Eye of Foresight	Receives a Demon Eye of Foresight from Kishirika Kishirisu. 39
Ranoa period	Advanced magic student and doll-maker	Enters Ranoa's advanced magic class and develops chantless earth-magic doll-making into a specialty. 42 43
Orsted conflict	Magic Armor user	Completes a three-meter Magic Armor equipped with a Gatling Rock Cannon, Hydra-scale mana absorption, and a shield. 93
Later combat career	Emperor-tier-equivalent armored combatant	His Magic Armor allows him to defeat the Holy Tomb Guardians while holding back; Dolin assesses his armored strength as at least Emperor-tier. 169
Biheril conflict	Sixth of the Seven Great Powers	Becomes the sixth-ranked Seven Great Power under the title Magic King. 186
Laplace campaign	Proficient Water God Style swordsman	Applies Water God Style techniques alongside Magic Armor combat and the King Dragon Sword against Demon God Laplace. 206 207

Background / History

Rudy lived in Buena Village with his father, Paul Greyrat. As a young child, he was timid around strangers; during Dolin Prodia Greyrat's visit to the village, the two only exchanged a glance before looking away. 17

He became Eris Boreas Greyrat's magic tutor after Paul arranged for him to be taken from Buena Village to Roa. He taught Eris magic while studying Sword God Style alongside her, though Eris considered his swordsmanship weak despite his Water Saint-tier magic. 27 29

Following the Teleportation Incident, Rudy was transported to the Demon Continent with his younger sister Norn. Their journey was slowed by Norn's poor physical condition, but they eventually met Roxy Migurdia, Elinalise Dragonroad, and Talhand; Ruijerd later left the group at Port of Wind. 39

Rudy reunited with Paul, Lilia, Aisha, and Dolin in Milishion. His criticism of Paul's conduct during the family's separation led to a father-son brawl, but Paul began recovering emotionally after the reunion. 39

He traveled north with Dolin, Roxy, Elinalise, Norn, and Aisha. At the Red Dragon Lower Jaw, Rudy approached Orsted to ask about the Teleportation Incident; Orsted attacked after learning of Hitogami. Dolin protected Rudy, remained behind to negotiate with Orsted, and later returned with a bracelet that concealed his destiny from Hitogami. 40 41

Rudy subsequently enrolled at Ranoa University of Magic, entered the advanced magic class, reunited with Sylphiette, and began sharing Dolin's house with his family and companions. 42 43

During his time in Sharia, Rudy received a diary from an alternate future version of himself. The diary's account of a ruined future and Hitogami's manipulation deepened Rudy's fear of losing his family. 80 93

He developed the Magic Armor as a weapon capable of confronting Orsted. After Hitogami coerced him into attempting Orsted's assassination, Rudy ambushed the Dragon God but was decisively defeated and lost both arms. Dolin intervened in the aftermath, and Rudy accepted service under Orsted; Orsted healed his arms with King-tier healing magic and gave him a bracelet that obstructed Hitogami's future sight. 93 94

Rudy later inherited the Notos Family estate and adopted the name Rudeus Notos Greyrat. He supported Zanoba during the King Dragon Kingdom's invasion of Shirone, using Magic Armor-supported magic to help defend the country before Dolin's army destroyed the invading force. 141 150 151

While investigating the Superd Race's illness in the Biheril Kingdom, Rudy was possessed by Nether King Vita and trapped in a fabricated dream. He ultimately escaped the dream alongside Dolin and returned to the battlefield in his Magic Armor. 179 180 184

Rudy subsequently joined Perugius and Ruijerd in an attempt to assassinate the resurrected Demon God Laplace. Although the group failed to kill Laplace and was forced into a desperate retreat, Rudy fought him directly with the King Dragon Sword, Water God Style techniques, and Magic Armor. 206 207 208

Appearance

Rudy is described as a child with a small build relative to adults. During his first encounter with Dolin, he was playing in Buena Village's courtyard. 17

• He later appears close in age to Roxy despite being younger. 40
• He has a younger brother-like dynamic with Dolin, who calls him “Rudy.” 41
• His hair turns completely white after the extreme mana depletion caused by his battle with Orsted. 95

Personality

Rudy is initially shy around unfamiliar people, but he is persistent in magic study and willing to undertake dangerous travel for his family. 17 39 He is deeply attached to Sylphie and does not want to be separated from her. 27

He is wary of Dolin's chantless magic and proximity to Roxy, though Dolin's intervention against Orsted causes that distrust to shift into gratitude. 40 41 Rudy has little attachment to his former life on Earth and rejects Nanahoshi's offer to join research aimed at returning there. 46

The future diary leaves Rudy intensely afraid of losing his wives and children, making him vulnerable to Hitogami's threats but also determined to obtain the power to protect his family. 80 93 Although initially hesitant in life-or-death combat, he grows into a capable commander and combatant who is willing to oppose powerful enemies such as Orsted, the King Dragon Kingdom's army, and Demon God Laplace. 94 150 206

Abilities & Skills

Water Saint-tier Magic

Rudy is a Water Saint-tier magician capable of casting attack magic without incantations. 39 42

• Uses chantless magic as his primary combat discipline.
• His magic is regarded as strong, though Eris considers Dolin's Water King-tier magic more impressive. 29
• Dolin considers Rudy's combat strength high enough that defeating him would not be easy if he fought seriously. 46
• His immense mana reserves allow him to sustain large-scale spells and operate mana-intensive equipment. 93 150

Demon Eye of Foresight

Rudy possesses a Demon Eye of Foresight granted by Great Devil Emperor Kishirika Kishirisu after he encountered her in Dalkrasma Town. 39

• He obtained the eye after following Hitogami's advice. 41
• His connection to Hitogami makes him a target of Orsted. 40 41

Earth Magic Doll-Making

Rudy uses chantless earth magic to create detailed dolls and figurines. 42 43

• He offers to teach Dolin the technique.
• Zanoba Shirone becomes his disciple in order to study doll-making. 43
• His work is valued highly enough that Zanoba refuses to sell a doll made by Rudy. 43

Magic Armor

Rudy designed and built a large Magic Armor to compensate for his physical limitations in close combat. 89 93

• The initial model is roughly three meters tall and moves in response to the wearer's body as mana is supplied. 93
• Its right arm houses a Gatling-style magic device capable of firing repeated high-level Stone Cannon rounds, while its left arm incorporates mana-absorbing Hydra scales. 93
• It can sprint at approximately two hundred kilometers per hour, leap hundreds of meters, and deploy its back plates for emergency escape. 93
• A later model is lighter, consumes less mana, and includes a flight formation for rapid withdrawal. 150
• With the armor, Rudy defeats the Holy Tomb Guardians and kills the Ogre God with Gatling Rock Cannon fire. 169 184

Water God Style Swordsmanship

Rudy later studies Water God Style under Dolin and becomes proficient in its defensive and counterattacking principles. 207

• He uses Water God Style techniques in conjunction with the King Dragon Sword during his battle against Demon God Laplace. 206 207
• He remains more comfortable analyzing an opponent's openings and counterattacking than committing to the aggressive mentality associated with elite swordsmanship. 207

Swordsmanship

Rudy studies Sword God Style, but his progress is limited compared with Eris's. 27 29

• He remains Beginner-tier after three years of training. 29
• Eris states that he cannot evade even one of her moves. 29
• Despite his early limitations, he later employs beginner through advanced Sword God Style and Water God Style techniques while fighting in Magic Armor. 206

Healing Magic

Rudy can use healing magic and later benefits from his vast mana reserves in high-level magical work. 43 170

• Orsted restores Rudy's severed arms with King-tier healing magic after their battle. 94
• Rudy participates in efforts to secure God-tier detoxification magic for Zenith's treatment. 168 170

Relationships

• Paul Greyrat — Father. Their reunion after the Teleportation Incident devolves into a fight, but Paul begins recovering from his guilt and alcoholism afterward. 39
• Zenith Greyrat — Mother; remains missing after the family reunion, prompting a continued search. 39 Rudy later pursues God-tier detoxification magic for her treatment and searches for her again after her disappearance in Millis. 168 170
• Norn Greyrat — Younger sister. She travels with him from the Demon Continent and is strongly attached to him. 39
• Aisha Greyrat — Younger sister. She travels north with Rudy and later studies at Ranoa alongside Norn. 39 42
• Sylphiette — Childhood friend and wife. Rudy promises that they will attend Ranoa University together and remain together for life; they later reunite at the university and have a daughter, Lucy. 27 42 119
• Roxy Migurdia — Magic teacher, companion, and wife. They travel together after meeting on the road, and Rudy later seeks Dolin's relationship advice concerning her. Their daughter is Lara. 39 47 119
• Sara Notos Greyrat — Third wife. She later bears Rudy a son, Lancelot Notos Greyrat. 144
• Dolin Prodia Greyrat — Distant relative, benefactor, and trusted elder-brother figure. Dolin saves Rudy from Orsted, warns him to distrust Hitogami's dream guidance, helps negotiate Rudy's service under Orsted, and later trains him in Water God Style. 40 41 94 207
• Eris Boreas Greyrat — Former student. Rudy serves as her magic tutor and trains in Sword God Style alongside her. 27 29
• Orsted — Dragon God. Orsted initially attacks Rudy after hearing the name Hitogami, but later accepts him as a subordinate after Dolin's intervention. 40 41 94
• Zanoba Shirone — Doll-making disciple and close friend. The two quickly bond over their shared interest in dolls and later cooperate during the Shirone conflict. 43 150
• Nanahoshi — Another person from Earth. Rudy declines to participate in her effort to return there, but offers limited help. 46
• Ariel Anemoi Asura — Political ally. Rudy joins her party during the Asuran succession conflict and helps protect her from assassination attempts and military ambushes. 99 100
• Ruijerd Superdia — Former Demon Continent companion. Rudy reunites with Ruijerd in the Biheril Kingdom and later fights alongside him against Demon God Laplace. 39 179 206
• Perugius Dola — Ally in the campaign against Demon God Laplace. Rudy joins Perugius and Ruijerd in their attempt to assassinate Laplace. 199 206
• Geese Nukadia — Former associate who becomes an enemy after declaring war on Rudy and Dolin as an apostle of Hitogami. 171 173

Story Role / Major Arcs

Buena Village and Roa

• Lives in Buena Village before being sent to Roa as Eris's magic tutor. 17 27
• Studies magic and beginner-level Sword God Style while teaching Eris. 27 29

Teleportation Incident and Demon Continent Journey

• Is transported to the Demon Continent with Norn during the Teleportation Incident. 29 39
• Travels with Norn, Roxy, Elinalise, Talhand, and initially Ruijerd before reaching Milishion. 39
• Reunites with Paul, Lilia, Aisha, and Dolin. 39

Northern Continent and Orsted Encounter

• Joins the northern journey to search for Zenith and attend Ranoa University. 39
• Provokes Orsted by asking about the Teleportation Incident and revealing his connection to Hitogami. 40
• Survives because Dolin intervenes and later cautions him against trusting Hitogami blindly. 40 41

Ranoa University of Magic

• Enrolls in Ranoa's advanced magic class. 42
• Reunites with Sylphiette and befriends Zanoba through their mutual interest in doll-making. 42 43
• Meets Nanahoshi and reveals that he, like her and Dolin, originated from Earth. 46

Future Diary, Magic Armor, and Orsted

• Receives the future diary of an alternate Rudeus and learns of the disastrous consequences of trusting Hitogami. 80
• Builds the first Magic Armor to gain the power needed to defend his family against overwhelming opponents. 89 93
• Attempts to ambush Orsted under Hitogami's coercion, but is defeated and loses both arms. 93 94
• Becomes Orsted's subordinate after Dolin brokers an agreement between them. 94

Notos Inheritance and Shirone Conflict

• Inherits the Notos Family estate and begins using the name Rudeus Notos Greyrat. 141
• Assists Zanoba in Shirone's war against the King Dragon Kingdom, using large-scale magic and his upgraded Magic Armor. 150
• Helps defend Shirone until Dolin's Sunless Empire army arrives and destroys the invading force. 151 167

Biheril Kingdom and Demon God Laplace

• Investigates the Superd Race's illness in the Biheril Kingdom and is possessed by Nether King Vita. 179
• Escapes Vita's dream and uses Magic Armor to protect Roxy, the Superd Race, and his allies in the forest conflict. 180 184
• Becomes the sixth-ranked Seven Great Power, the Magic King. 186
• Joins Perugius and Ruijerd in a failed assassination attempt against the resurrected Demon God Laplace. 199 206 207
• Fights Laplace directly with the King Dragon Sword, Magic Armor, and Water God Style before escaping with Perugius and Ruijerd. 207 208

Trivia

• Rudy does not reveal that he was the person who saved Nanahoshi from the truck in their previous world. 46
• He calls his earth-magic creations “dolls,” while Dolin avoids calling them “figurines” to preserve the secret that he knows Rudy is a transmigrator. 42
• He solves Sylphie and Roxy's simultaneous cooking question by eating every dish at their birthday celebration. 49
• His daughters Lucy and Lara are born on the same night, with Lucy being born shortly before Lara. 119
• His Magic King title places him sixth among the Seven Great Powers despite his continued reliance on Magic Armor for close-range combat. 186 206