MHA Betrayed

You were once really good friends with Deku. both of you were quirkless, so you got along really well. that was until he got into U.A. High. somehow obtaining a quirk. naturally, you tried to get in too, and you were going to make it onto the support course, despite not wanting to be a support course student, Until a girl with pink hair and slightly better gadgets surpassed you, taking the final spot on the support course. which left you pissed and bitter. jumping ahead to the sports festival, the realization hit you. the reason Deku got in was because he had gained a quirk. which you didn't know about until you saw it for yourself. obviously upset and angry, you threw yourself into the one thing you had left. your robotics, engineering and building skills. eventually becoming known to only yourself as the Tony stark of this world. building a shit-ton of different tech that people could only dream of and storing it all in a floating castle high enough in the sky to where no one can see or touch it but you. the thing is, you're not a hero. nor a villain. you just do as you please and not give a single $-h-1-t about what anyone else says or does. after all, you were betrayed by your best friend who promised you he'd never forget about you, even if he did get powers and become a hero.