TV-Series
Description
Chūta Ban is the son of Daizō Ban, president of Ban Automotive Industry and a major sponsor of Seiun High School. A formidable judo champion holding three individual and team national titles, he led the judo club and served as the baseball team's "Demon Cheerleader." He leveraged his father's influence to bully team members, particularly targeting new enrollee Hyūma Hoshi. Their rivalry ignited during the high school entrance exam when Hyūma criticized Ban for relying on his father's status rather than his own merits, a remark that deeply affected Ban. Ban later facilitated Hyūma's enrollment to rival Mitsuru Hanagata of Hanagata Motors.

Ban relentlessly bullied Hyūma, enforcing brutal training like 50 laps around the diamond and "murderous knocks." Hyūma's resilience gradually fostered mutual respect. A defining moment occurred when Ban attempted to catch Hyūma's fastball, persisting through injury until success sparked his passion for baseball. He switched from judo to baseball, forming a battery with Hyūma under Ittetsu Hoshi's guidance. This transition tempered Ban's arrogance, cultivating dedication and sportsmanship. His judo strength occasionally powered crucial home runs for Seiun's offensively weak team.

Post-graduation, Ban joined the Yomiuri Giants with Hyūma, though scouts undervalued him, offering half the contract terms. Primarily a substitute, he became Hyūma's main catcher during "magic ball" training and often shared bench assignments. He shuttled between the first and second teams alongside Hyūma, rarely playing. His first-team debut came when regular catcher Masahiko Mori was injured.

A major shift happened in the 1969–1970 offseason when Ittetsu Hoshi orchestrated Ban's trade to the Chunichi Dragons for a pitcher, aiming to make him Hyūma's rival. The Giants initially resisted due to Ban's knowledge of the "Dai League Ball No. 2" but relented after its invincibility faded. Devastated by the trade and unwilling to betray Hyūma, Ban contemplated retirement. Hyūma's sister Akiko intervened, persuading him with Jean Cocteau's advice against "safe stocks" in youth. After the trade, Ittetsu's coaching revived Ban's hitting, which prior efforts with Hyūma had failed to improve.