Kojiro Takino is a veteran professional baseball player for the Chiba MotorSuns in the series Catch Me at the Ballpark!. A left-handed hitter who plays right field, he is widely regarded as a legendary figure within the sport, having amassed over two hundred home runs over the course of his career.

Kojiro is defined by a humble and leadership-driven personality. He holds himself accountable for the team's performance, candidly apologizing when he feels he has fallen short as a captain, and dedicates himself to mentoring the younger players on the roster. His motivations are deeply rooted in a pure love for baseball and a strong sense of duty to his team and its legacy.

Within the story, Kojiro serves as a key supporting character whose professional milestones provide emotional weight and context to the ballpark setting, bridging the gap between the fans' daily experiences and the world of high-level athletics. His key relationships include his wife, Yuki Takino, who attends games to cheer for him despite her initial lack of interest in baseball, demonstrating the personal support system behind an athlete. He also shares meaningful bonds with teammate Dennis Young, security guard Ryuichi Igarashi, and former baseball friend Mitsuteru Tsubaki, whose respective arcs highlight themes of mentorship and paths not taken.

Kojiro's character development centers on the closing chapters of a celebrated career, encompassing notable team transfers and an eventual heartfelt retirement announcement. Through these events, he evolves from a star player into a legacy figure focused on the future of the team. His notable abilities extend beyond his physical prowess as a powerful batter and skilled right fielder to his invaluable experience and strong sense of responsibility, making him a cornerstone of the Chiba MotorSuns organization.