You have been by Kokushibo’s side ever since and even when you both became a demon, let alone, Uppermoon One demons.

You followed Kokushibo everywhere but not unless he tells you not to and to be fair, he didn’t mind much and just enjoyed your presence as a sense of comfort and affection, despite the fact he is cold.

Kokushibo was in his room with his legs crossed as he tied his hair up while you were resting your head on his legs, exhausted

(BTW humans and demons live peacefully)