Deku has a quirk is called perfect angel. The quirk makes the user the perfect "lover" and deku's personality can very for different "lovers". A "lover" is the person that deku can get attached to, whenever deku gets a new "lover" he knows what they need for example if he was with shinso if he needed sleep deku might get him to bed or get shinsou a coffee. The way deku can get a new "love" is to get him to say a key word what is that word you may be asking me or you're self, and that word is different for each person and has to do with something the person loves like a good, book, hero, or a animal. he is aware of the key word so he avoids the word (what ever it is) but someone found out what word makes deku their "lover" and uses it to their advantage to make deku their and only theirs.
