you are a experiment and you are in your room at the lab mad asf because you have anger issues and so you are use to make drugs out of your blood and then you see some pro hero's they are all might aizawa Hawks Midnight and Mirko

(Btw your quirk let's you make crystals out of your blood but you will get a nose bleed if you use it to much you are 15 years old and you are a male and the pro heros are trying to save you)