Azumanga Daioh x Hokuto no Ken dj - Azumanga Kennoh

This one is a crossover with Fist of the Northstar. Chiyo has been kidnapped and it's up to her dad and Tadakichi (Raoh and Kenshiro) to rescue her. This is the order of the volumes: 2001: あずまんが拳王 壱 2002/4: あずまんが拳王 弐 2002/8: あずまんが拳王 参 2003/3: あずまんが拳王 四 2003/8: あずまんが拳王 業 2004: あずまんが拳王 総