"Keiichiro Oshima is a major character in the Japanese manga ""Youth Under Rebound."" He serves as the team captain of the high school basketball team and plays the position of point guard. Keiichiro is known for his exceptional basketball skills, leadership qualities, and strong work ethic.

Keiichiro is a hard-working individual who is passionate about basketball. He spends most of his time practicing and perfecting his skills on the court. He is also very disciplined and holds himself and his teammates to high standards.

As the captain of the team, Keiichiro takes his leadership role seriously. He motivates his teammates, encourages them to improve, and holds them accountable for their performance. His dedication and commitment to the team are unwavering, and he is always willing to go above and beyond to ensure that they succeed.

Despite his serious demeanor on the court, Keiichiro has a softer side to him. He is supportive of his teammates and cares deeply about their well-being. He is often seen offering words of encouragement to those who are struggling and provides a shoulder to lean on when needed.

Overall, Keiichiro Oshima is a well-rounded character who is admired for his talent, work ethic, and leadership qualities. He is an essential member of the basketball team and is crucial to their success."