

Katsuya Jonouchi
じょうのうちかつや
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Personal Description | |
Nihongo | じょうのうちかつや |
Biographical information | |
Birth | January 25 1980 |
Age | 16 |
Status | Alive |
Occupation | Domino High School |
Physical information | |
Favorite food | curry and rice |
Gender | Male |
Height | 178 cm |
Weight | 62 kg |
Duelist | |
Duels | List of Duels |
Deck | List of games |
Debut | |
Manga Debut | Yu-Gi-Oh! Duel 1: “The Puzzle of the Gods” |
InuYasha Anime | Yu-Gi-Oh! |
Katsuya Jonouchi
Japanese Name:城之内じょうのうち克也かつや (Jōnouchi Katsuya)
English Name:Joey Wheeler
Role:Supporting protagonist and Yugi Mutou’s best friend inYu-Gi-Oh!series
Personality:Fierce, loyal, and determined
Émile Durkheim
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Born |
David Émile Durkheim
15 April 1858 Épinal, France
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Died | 15 November 1917(aged 59)
Paris,France
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Nationality | French |
Alma mater | École Normale Supérieure |
Known for | Sacred–profane dichotomy Collective consciousness Social fact Social integration Anomie Collective effervescence |
Scientific career | |
Fields | Philosophy, sociology, education, anthropology, religious studies |
Institutions | University of Paris, University of Bordeaux |
Influences | Immanuel Kant, René Descartes,Plato, Herbert Spencer,Aristotle, Montesquieu, Jean-Jacques Rousseau, Auguste Comte. William James, John Dewey, Fustel de Coulanges, Jean-Marie Guyau, Charles Bernard Renouvier, John Stuart Mill |
Influenced | Marcel Mauss,Claude Lévi-Strauss, Talcott Parsons, Maurice Halbwachs, Jonathan Haidt, Lucien Lévy-Bruhl,Bronisław Malinowski, Fernand Braudel, Pierre Bourdieu, Charles Taylor, Henri Bergson, Emmanuel Levinas, Steven Lukes, Alfred Radcliffe-Brown, E. E. Evans-Pritchard, Mary Douglas, Paul Fauconnet, Robert N. Bellah, Ziya Gökalp, David Bloor, Randall Collins, Neil Smelser[1] |
Major Story Arcs and Accomplishments
- Duelist Kingdom:Jonouchi enters the tournament to win the prize money needed for Shizuka’s medical procedure. Though he lacks experience, his unwavering drive helps him progress through the tournament, ultimately reaching the finals. His growth in this arc is highlighted by his resilience and loyalty.
- Battle City:During this tournament, Jonouchi’s skills and confidence as a duelist are further refined. He faces several dangerous foes, such as Rishid (Odion) and Marik Ishtar, proving his courage and readiness to protect his friends.
- Orichalcos Arc (Anime-Only):Jonouchi’s determination to protect his friends shines as he confronts both physical and psychological challenges against the forces of Dartz and the Orichalcos.

With determination in his eyes, Katsuya Jonouchi readies his card, showcasing his fierce competitive spirit and unwavering resolve to give his all in every duel.
Personality
Jonouchi is fiercely loyal and will risk everything for the people he cares about. Although he starts off as a bit hot-headed and rash, he matures significantly, showing courage, resilience, and a selflessness that makes him a true hero in his own right. By learning from Yugi, he becomes a competent duelist, with a play style reflecting his personality—bold, unpredictable, and full of heart.
Background and Story
Jonouchi grew up in challenging circumstances, marked by his parents’ divorce and a tumultuous relationship with his alcoholic father, whom he lived with after the split. His younger sister, Shizuka (Serenity in English adaptations), was raised by their mother, leading Jonouchi to take on a protective role toward her despite their separation. Initially, he led a rough lifestyle, associated with a delinquent gang led by Hirutani. However, after meeting Yugi Mutou, he began turning his life around, valuing friendship, honor, and compassion.
Key Rivalries and Relationships
Yugi Mutou (Yugi Muto)
Jonouchi’s bond with Yugi is one of the closest in the series. Yugi’s kindness and unwavering support transform Jonouchi’s outlook, helping him grow from a street tough into a steadfast friend and protector.
Shizuka Kawai (Serenity Wheeler
Jonouchi’s younger sister, whom he is deeply devoted to and protective of. Her well-being drives much of his motivation, particularly in duels.
Mai Kujaku (Mai Valentine)
Jonouchi has a complex but close relationship with Mai. He respects her as a rival duelist and, over time, develops a strong bond of friendship and admiration for her resilience and independence.
Hiroto Honda (Tristan Taylor) and Ryo Bakura (Bakura Ryou)
Jonouchi’s childhood friend and confidant, Honda supports Jonouchi both in and outside of battles.
Ceremonial Battle
Jonouchi starts his journey as a novice Duel Monsters player, encouraged by Yugi to join tournaments despite his initial lack of skill. Through sheer determination and learning from Yugi and Dark Yugi (Atem), he quickly improves, developing a unique dueling style focused on courage and risk-taking. His tenacity and ingenuity eventually make him a formidable duelist, earning the respect of allies and rivals alike.
Trivia
Trivia:
★ Jonouchi’s signature monster is theRed-Eyes Black Dragon, which he earns through hard-fought duels and sees as a symbol of his determination and growth as a duelist.
★ His English name, Joey Wheeler, reflects his working-class, tough-guy persona, while also highlighting his loyalty to friends.
★ His dynamic with Mai Kujaku adds emotional depth to his character, offering a glimpse into his complex and compassionate side.