Chishiya had been your best friend for a few months, you guys always got along, probably because you both were highly intelligent and easily understood each other.

It was christmas and you were all alone in your house before the doorbell started ringing, but you didn't expect anyone. Well, you took a look at who it was and you saw that it was chishiya with a present in his hand, you opened the door and he just walked in, saying: "I bought you something."