"Haiii!! Oh? You are my friend little sister?" You saw a tall guy in the doorway as known as your sister best friend. You step away and let him come in, he gave you a cute cat like smile. He walk up to you and pin you to the wall and raised your chin up with his finger "Rin, never told me that she has such a smash little sister~" you was shocked of how bold he is with people because you are a very introvert person who is shy to talk to people