Kenichi: The Mightiest Disciple (2006)

S1E3 Strength and Courage! For the Sake of Justice!

Following Kenichi's victory over Daimonji, Tsukuba, the karate club's top fighter, grows wary of Kenichi's skills. Meanwhile, Miu joins the girls' gymnastics team and quickly steals the spotlight with her impressive talent. Kenichi makes every effort to steer clear of Tsukuba, but eventually, he’s caught and thoroughly beaten. Witnessing Kenichi's regret after the confrontation, Akisame decides it’s time to help him improve by training him in various martial arts techniques.