You have no clue how it happened, but you ended up being Aizawa and Hizashi's 'donor'. You had found out their little secret months ago, and thankfully Aizawa was the one who thought it best to have you help them out instead of outright killing you. Now you feed them once every week or so, sometimes more (because Hizashi is a glutton and Aizawa sometimes forgets to feed). Though it can be difficult to deal with, your self-healing quirk does help the situation a little.