Unstable duo♡Yandere Shinsou x reader

•Yandere Shinsou didn't really think of it as a obsession but really he never realised what it is to have been obsessed with someone,but Y/n never seemed to be scared of him and of his actions he has done to her.He though he was going crazy but both of them aren't in their best form wich makes them the duo you wouldn't expect.