Movie
Description
Ittetsu Hoshi, once a third baseman registered with the Yomiuri Giants from 1942 to 1948, never played an official game after wartime drafting interrupted his career. Combat inflicted a permanent shoulder injury, shattering his potential as "the greatest third baseman in history." Post-war, he developed the intimidating "Devil's Fastball" (魔速球), a pitch designed to hit or intimidate batters, yet abandoned professional baseball amid criticism for violating the Giants' honor.

Following his wife Harue's death, Ittetsu descended into alcoholism and poverty, working as a Doya-gai day laborer. His own unfulfilled baseball ambitions drove him to enforce brutal training regimens on his son, Hyūma Hoshi. These included forcing Hyūma to wear a restrictive "Dai League Ball Training Cast," stunting his growth, and using gasoline-soaked baseballs set ablaze during practice, initially fueling Hyūma's resentment towards both baseball and his father.

Later, Ittetsu coached baseball at Seiun High School, where Hyūma was a student, resigning before the Tokyo tournament. He rejected an offer to coach the Giants' second team, instead joining the Chunichi Dragons as a coach under the condition they acquire Ozuma from the St. Louis Cardinals. He chose jersey number 84, symbolizing his partnership with Hyūma (who wore Giants number 16), as their combined numbers totaled 100, representing "perfection."

At Chunichi, Ittetsu rigorously trained Ozuma and later acquired Chūta Ban via trade, subjecting both to grueling methods to forge them into rivals capable of challenging Hyūma. He framed this rivalry as a "fight between man vs man, eat or be eaten," embodying his belief in baseball as a life-or-death struggle. Despite their adversarial dynamic throughout Hyūma's career, Ittetsu ultimately expressed pride in his son's dedication after Hyūma sacrificed his pitching arm to win their final confrontation.

His philosophy demanded relentless perseverance, invoking the phoenix myth to symbolize rising from failure. He believed baseball extended beyond the ballpark into "24-hour life," requiring total commitment. Quotes like "become a bright star and shine" reflected his lifelong fixation on achieving greatness through the Giants – a dream he transferred to Hyūma.