Full Metal Panic? Fumoffu

The Pure Yet Impure Grappler (1x5)

Air date: Sep 16, 2003

Sousuke and Kaname ask the school's karate club to vacate their dojo, which is slated for demolition. However, the club refuses to leave, challenging Sousuke to a duel where they'll leave if they lose. Sousuke defeats the club's members with relative ease until he faces the club's captain.