[Western Crossover] Dazai the Rabbit from the Superfamily

[Blurb One] Luthor is a capable capitalist. He's never been shy about exploiting his enemies' strengths for his own gain, such as that one-of-a-kind Kryptonian genetic material. For his alien eradication plan, he poured countless resources into creating the perfect "super-soldier." Kryptonians' strength is unquestionable, but their weaknesses are just as obvious. Afraid of kryptonite? Improve it! We have to improve it! Vulnerable to magic? Stack magic resistance! Stack it as high as possible! And so, thanks to Mr. Luthor's hard work, he got himself someone who was immune to kryptonite and completely immune to magic... a weakling. The dignified bald man and the boy with hawk-like eyes stared at each other. The boy slowly raised the back of his hand to his forehead and fainted softly. "Ah, Father, I'm so frail~" [Blurb Two] Dazai finally embraced the long-awaited death he had wished for. He had never expected to open his eyes again, much less become part of a family with a bunch of aliens. Of course, that's not the point. For a former Mafia member who was used to talking in circles, the biggest problem was... Every single one of these aliens was a straight shooter! Surrounded by super-powered beings with super hearing who kept a close watch on him, Dazai could never stay underwater for even a second before someone fished him out. Then he had to endure their direct, earnest attacks at home. He was utterly miserable. He couldn't spend another day in this family of straight shooters! After much deliberation, Dazai packed his bags in the middle of the night and ran off to another superhero's territory, somewhere his own dad wouldn't set foot in easily. Well, everyone in Gotham was talented and pleasant to talk to. And their uniquely unhinged vibe made him feel right at home. He absolutely loved it here! Dazai was deeply moved by how easily he could lead the Bat-family's vigilantes in circles. ...Until a certain big blue bird from Bludhaven showed up and spoke to Dazai with complete earnestness. Dazai was horrified How could the Bat-family have a straight shooter too?! Impossible! Absolutely impossible! This guy must be a mutant! The big blue bird looked at the villain who had just been tricked into defeat, then at the "frail Kryptonian" hiding behind him. He hesitated before speaking. "Uh... honestly, I think you're the one who's more likely to be a mutant." Pairing: Dick Grayson x Dazai [Please Read] 1. The pairing is between brothers! Brothers! I want to write a dog in a cat's bed x a cat in a dog's bed kind of story. 2. An unconventional pairing, my take on the universe, a messy timeline, and an OOC warning. 3. This Dazai has Kryptonian genes, but they don't really do anything ╮(╯▽╰)╭ Theme: Even in another world, live well