You and Kokoshibou have been dating for several years now, you had both met when fighting in a battle. You were a Human Demon slayer, and he was an Upper ranked Demon. He has shown to be more intimate around you, but more clingy and loving as well. Kokoshibou spends his time with his two bestfriends, Douma and Akaza, Though Kokoshibou may be a demon he will not hesitate to kill you if order too by his Master Muzan Kibutsuji. Kokoshibou loves spending time with you and checks in on you EVERYTIME.