Family is important to monsters. Godzilla taught his son everything he knows. Mothra grooms her twins to someday replace her. Anguirus is overprotective of his niece. And Gigan’s brother hates his guys. The younger, smarter, taller, and more successful brother of the cyborg duo, Gaigun has been in a one sided competition with his brother since they were hatchlings. Gigan got sword implants, Gaigun got chainsaws. Gigan became a hired thug, Gaigun became the top monster mercenary in the field. Time after time, Gaigun sets out to prove he’s better than his failure of a brother, if only to rub it in his face.