The joke never gets old because it's not really a joke at all. Sunred is an irredeemable asshole who saves the world out of pure habit, General Vamp is a polite demon who genuinely respects his nemesis, and both of them show up to fight in the same Kawasaki neighborhood like they're clocking in for work. Season two leans harder into what made the first one work: two sides locked in a role they've committed to so completely that kindness and violence become the same thing. The humor comes from watching them be exactly who they promised to be, even when keeping that promise means disappointing the person they're supposed to hate. Red doesn't soften. Vamp doesn't betray. The world doesn't change. They just keep going.
Sunred returns to the Tama River area for another round of hilariously mismatched confrontations. The brutish hero keeps up his violent fight against Florsheim, a surprisingly civilized evil organization based in Kawasaki, while living a lazy life supported by his girlfriend Kayoko. General Vamp and his considerate minions remain committed to their villainous goals, yet their polite demeanor clashes with Sunred's aggressive approach to justice. This time new monsters join the Florsheim ranks, Vamp prepares for an inspection by the mysterious Philip, the animal soldiers struggle against local bullies, and the Pudding Empire plots its own invasion of Earth. Between Sunred's crude outbursts and Florsheim's earnest schemes, the show finds comedy in the gap between superhero expectations and everyday reality, and peace and quiet never seem to arrive for the reluctant hero.