Conquering the Multiverse Starting with the Black Robe

In the world of Black Robes: Rean, stepping on Azu's head, says, "I don't like being looked down upon. One person who can fly is enough. So, you giant baby, learn how to walk properly." In the world of Invincible Young Hero: Omnipotent Hero kneels on the ground, wiping away his nosebleed: "Earth shouldn't be occupied by people like you!" "I'm not interested in Earth. Let your king come to me. Such a powerful race should submit to me." In the Marvel universe: Iron Man exclaims urgently, "Damn it, Jarvis, quickly analyze his weakness, or we'll all die!" Jarvis: "Sorry, sir. He... doesn't seem to have any weaknesses!" In the realm of Asgard, Thor raises his hammer and cries out in anguish, "Arrogant mortals, Asgard will never yield!" A purple-skinned demigod, about to snap his fingers, declares, "I am... the chosen one!" Rean grabs his neck, "Shh, you're not. You're at most the chosen one. I am the chosen one." In short, this is a story about how "mortals" conquer the multiverse step by step.