Is It Too Much for Me, a Hero, to Only Do Bad Things?

Multiple different worlds invaded the earth, and the earth faced an unprecedented crisis. As a humble ordinary earthling, Zhang Yuan obtained the hero system and became a god-level hero, possessing the power to blow up the earth with one punch. The 10,000-meter giant crushed the city with one foot. The giant dragon of time and space destroyed an island country with one breath of dragon breath. The Kunpeng on the seabed cannot be stewed in one pot. Rule-based cursed creature, undead monster 096. A god-level life form of conceptual system that exists in another dimension. The demons that devour and evolve, the new humans who have unlocked their genetic locks, the parasitic beasts that control life, the aliens that invade the earth, the endlessly killing Zerg, the infinitely evolving AI machines... Humans cry out in despair and pray. "Whoever comes, please save us!" "Hero! Come back quickly!" "We know we were wrong, please save humanity again!" The hero appears! He could blast the Demon Ancestor with one punch, crush the Dragon Emperor to death with one kick, kick to death the 10,000-meter giant, and crush hundreds of millions of new humans with his five fingers. "You bastards, you dare to touch my earth, don't you want to live anymore?" When one punch breaks the planet "Sorry, this is already my minimum strength." What hero? Call me the devil!