Mitsuyoshi Anzai is the head coach of the Shohoku High School basketball team, a figure widely respected even by rival coaches who address him as Anzai-sensei. He is a heavyset, white-haired older man with a gentle, grandfatherly appearance, and his students commonly call him the White-Haired Buddha for his calm and patient demeanor. This serene exterior, however, masks a profound personal history and a sharp basketball intellect.

Anzai began his coaching career at the university level, where he was known as the White-Haired Devil. He was a ferocious and demanding coach who pushed his players relentlessly, focusing on brutal conditioning and strict discipline. One of his most promising disciples was a talented player named Ryuji Yazawa. Under intense pressure from Anzai’s rigorous training, Yazawa grew frustrated and left for the United States against Anzai’s wishes, hoping to find greater opportunities. Years later, Anzai learned that Yazawa had died in a car accident under tragic circumstances, reportedly involving drugs. A letter from Yazawa, written years prior but never sent, revealed the player’s deep regret and despair over his decision. The loss devastated Anzai. He resigned from university coaching and underwent a fundamental transformation, adopting a far gentler and more compassionate philosophy. He took the position at Shohoku as a high school coach, determined to guide young athletes with patience instead of fear.

In his present role, Anzai embodies wisdom, patience, and a profound understanding of human nature. He rarely raises his voice or resorts to punishment; instead, he teaches through quiet confidence, trust, and emotional balance. His coaching philosophy centers on helping players discover their own potential and grow as people, not just as athletes. He is a brilliant strategist who can turn the tide of a match with subtle adjustments, yet his greatest strength lies in his ability to inspire and nurture.

His relationship with Hanamichi Sakuragi exemplifies his unique mentorship. Where others see Sakuragi as a reckless troublemaker, Anzai recognizes raw potential and enthusiasm. He channels Sakuragi’s energy into disciplined effort, famously assigning him a grueling regimen of twenty thousand practice shots to prepare for the national tournament. He also tolerates Sakuragi’s informal address of Oyaji, or old man, without reprimand.

The bond with Hisashi Mitsui is one of the series’ most emotionally charged threads. As a middle school player, Mitsui was on the verge of giving up during a championship game when Anzai, who had come to scout him, walked over and said, If you give up, the game is over right there. Those words stayed with Mitsui, and even after a years-long absence from basketball due to injury and disillusionment, it was Anzai’s faith and that line that ultimately inspired Mitsui to return to the court, culminating in his tearful apology to the coach. The same line is later delivered to Sakuragi during the Sannoh match when he injures his back, moving him to finish the game on sheer will.

Anzai also maintains meaningful relationships with other players. Both Mitsui and Ryota Miyagi chose Shohoku over more prestigious schools because of Anzai’s presence. He calmly addresses the insecurities of his team before crucial matches, and he is not afraid to impose discipline, as when he benched four players involved in a brawl. His health is a concern; he suffers a heart attack during the inter-high tournament, forcing him to miss a key game, yet his players carry his spirit onto the court.

Throughout the story, Anzai develops from a figure introduced as a comic, soft-spoken old man into a deeply wise mentor whose past tragedy informs every action. His notable abilities include an extraordinary talent for reading games, recognizing latent talent, and delivering exactly the right words at the right moment to keep his players from giving up. He is a father figure to the team, teaching that true victory is found not in winning alone, but in perseverance, teamwork, and heart.