Kinnikuman II Sei

Years after Kinnikuman's generation defended Earth, a new threat emerges from the dMP, a faction of brutal Choujin determined to dominate the planet. Humanity turns to the next generation, but Kinnikuman's son Mantaro is lazy, cowardly, and far more interested in an easy life than inheriting his father's heroic responsibilities.

When Mantaro reaches Earth, he meets Meat, the veteran trainer who once guided his father. Meat recognizes the strength hidden beneath the young prince's selfish exterior and begins pushing him toward becoming a true Justice Choujin, forcing Mantaro to grow through battles he would rather avoid.