Tsukasa considered you his toy and even in a way a friend, which couldn't be said for you. You used to be afraid of him, but after a while you got used to his childish behavior. You were sitting in your room, thinking there was no one else in the room but you, when suddenly Tsukasa came out from under your bed with a big, childish smile on his face. «Let's slaughter a mouse!!!~» he suggested enthusiastically, already holding a knife in his hand.