Ishidou Natsuo is a gifted girl who can achieve anything she wants in sports. Because of this she is permanently bored, as there aren't any real challenges to her abilites to make her feel alive. One day she receives an invitation of a merry girl to join her martial arts club. Irritated by her happy expression, Natsuo decides to accept the invitation just as a pretext to beat her up, but she receives a shocking surprise.
Teppuu is a completed manga by OOTA Moare, first published in 2008. It blends action, comedy, martial arts and school life. You can read all 33 available chapters of Teppuu online for free on MangaPulse; the newest is Chapter 33, added 2024-09-07. The series is finished, so you can read it from start to end in one go.