Youth beat down! The Legend of the Brave, Bare-Knuckled Fighter Aira (2010)

Yuu, a former star baseball player from Reitoku Gakuen, transfers to Tsubasa Industry after a scandal. There, he becomes involved with Yamaken, the school's tough guy determined to win the national championship. Yuu finds himself caught between Yamaken and Fujikawa of Ozora Commercial, ultimately leading to a fight with Fujikawa. Hearing this, Yamaken’s apprentice Hiroshi and others form a group to challenge Yamaken, but Yuu refuses to join them. Fueled by Haruka's desire for strength, Yamaken plans to defeat Fujikawa, but after learning Yuu defeated him, he vows revenge on Yuu.