Viva Baseball (2012)

Umi was a professional baseball player whose career ended due to a fixed-game scandal more than a decade ago. After he decides to take a job to coach a high school baseball team, his life suddenly turns complicated: a mysterious woman arrives to become his manager, and the secret sponsor behind his team is actually the same mob boss who had once ruined his life. Months later, as his team grows strong and advances to the finals, Umi sees a chance for redemption of his life...