Invincible Superman Zanbot 3

The anime follows the Jin family, descendants of Beal, a planet annihilated by the Gaizok. Fleeing to Earth, the Jin family, along with the Kamie and Kamikita families, attempt to rebuild their lives. However, the Gaizok's inevitable arrival forces the Jin family to prepare for war. They develop the Zambot 3, a giant robot formed by the combination of three vehicles, to combat the Gaizok's mechanical beasts, the Mecha Boosts. Despite their efforts to protect humanity, the Jin family faces constant criticism and blame from the very people they are trying to save. This creates a complex dynamic where the heroes must not only fight an external threat but also navigate the internal struggles of societal distrust and prejudice. The series explores themes of survival, responsibility, and the burden of being a protector.