Kinnikuman: Kinnikusei Oui Soudatsu-hen

Kinnikuman has earned the title of the next ruler of Planet Kinniku, but his victory is short-lived when five other contenders appear, each asserting their claim to the throne. To determine who is truly worthy, a Royal Survivor Tournament is announced, setting the stage for a fierce battle among the would-be princes.

Armed with the support of loyal friends and his newfound mastery of the Ultimate Technique, known as the Muscle Spark, Kinnikuman embarks on a journey filled with intense confrontations and comedic moments. As the tournament unfolds, he must prove not only his strength but also his heart, fighting to reclaim his rightful place as king.