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Description
Jirou Akutagawa is a third-year student at Hyotei Academy, where he is a regular member of the prestigious tennis club. Born on May 5, he is fifteen years old and stands 160 centimeters tall. Known for his messy, chin-length blonde hair and half-closed eyes, he carries an almost perpetual air of drowsiness, a trait that has earned him nicknames such as the "Sleeping Beauty" or simply "Mouton," which means sheep. His family consists of his parents, an older brother, and a younger sister, and his father runs a self-operated dry-cleaning business.

Personality-wise, Jirou is defined by his profound love for sleep, often napping through classes, team practices, and even on his way home from school. This languid exterior, however, masks a pure and enthusiastic passion for tennis. He is not motivated by rivalry or ambition in the traditional sense but plays the sport purely for the thrill and enjoyment of it. When faced with a genuinely strong or talented opponent, he instantly "awakens" from his stupor, becoming energetic, excited, and loud as he marvels at the challenge before him. He is perhaps unique in that he can be perfectly content with a loss if the match was memorable and exciting. This unassuming and cheerful nature makes him well-liked, and his teammates often note how his visible happiness on the court lifts their own spirits.

Jirou’s primary motivation in tennis is the joy of playing against skilled opponents. His entire approach to the game is driven by a simple, pure curiosity to see what kind of shots an adversary will return and whether he can counter them, without relying on complex strategies or predictions. This feeling of "fun" is the only thing that can fully rouse his dormant talents.

In the story, Jirou serves as a talented regular for the powerhouse Hyotei team. His most notable early match is against Yuuta Fuji at the Tokyo Prefectural Tournament, which he wins decisively in under fifteen minutes. His significant role comes during the Kantou Tournament, where he faces Yuuta's older brother, Shusuke Fuji, the "genius" of Seigaku. Though he initially matches Fuji with his net play, he is ultimately defeated by Fuji's counter moves. Despite the loss, Jirou is exhilarated by the experience. During the National Tournament, he secures victories in his matches, and following the series, he is invited to the U-17 training camp, where he wins his placement match against his teammate, Kabaji Munehiro, to join the "Victors" group.

His key relationships are deeply intertwined with his love for tennis. His greatest admiration is for Bunta Marui of Rikkai Dai, a volley specialist he lost to during a rookie tournament in his first year. He was so inspired by Marui that he modeled his own playstyle after him, travels to watch him practice, and treasures a wristband Marui gave him. He is fiercely loyal to his own captain, Keigo Atobe, who appreciated Jirou's early support and accommodates his sleeping habits, sometimes even lending him a limousine to get home. He shares a childhood friendship with teammates Ryou Shishido and Gakuto Mukahi, and has a particularly affectionate relationship with the stoic Munehiro Kabaji, whom he calls "Kaba-chan" and who often carries him when he is asleep.

Jirou experiences subtle but important development. His desire to face Marui again motivated him to make the significant sacrifice of staying awake for practices, a promise made to Atobe in exchange for arranging a practice match with Rikkai. His encounter with Shusuke Fuji, though a loss, is a pivotal moment where he faces a player capable of dismantling his net game, yet he reacts not with frustration but with exhilaration, affirming his love for the sport over winning. His later success at the U-17 camp demonstrates that his innate genius, when awakened, can overcome even formidable power players like Kabaji.

His notable abilities center on his role as a serve-and-volley specialist. He is considered the second-strongest player at Hyotei, with a skill set that even Atobe respects. His greatest asset is his exceptionally soft and flexible wrists. This natural gift allows him to execute his signature move, the Magic Volley, where he can seemingly redirect any ball hit toward him at the net to any spot on the court with a simple snap of his wrist, making his shots nearly impossible to predict. His playing style is characterized by his rapid advances to the net and a fearless, instinctive reaction to any ball, a testament to his philosophy of playing tennis simply for the fun of the game.