Kinnikuman II Sei

The Chojin Crown, the tournament which Mantaro (Kid Muscle) reluctantly participates in. After going along with the obstacles (most of which were created to try and eliminate him), he qualified.

In order to save a princess, Mantarou (Kid Muscle) and the gang must find a special ginseng. They are later joined by Kevin Mask.

Meat has been kidnapped by Iron Mask. In order to save Meat, the treasure of Inmora Island is needed. Furthermore, the treasure is hidden in the Seven Story Tower, which is guarded by the brutal Warrior Choujins. When Kinnikuman asks Terryman and the Justice Choujin to help him, for some reason they all refuse. Alone, Kinnikuman heads to Inmora Island to fight the Warrior Chōjin and is overwhelmed by their great numbers.

Mantaro has made it to the semifinal match of the Chojin Cup. He must now fight Ricardo in a soccer field to advance to the last match. Kevin Mask is also in the semifinals, and must defeat Ilioukhine in an aerial field to advance. These three matches will determine who wins the Chojin Cup.