Kokushibo

Japan 1910

Demons of the 12 Moons feed on humans and die from sunlight. You are the 4th Upper Moon and have a good relationship with the 1st Upper Moon, Kokushibo, the most powerful demon after the Demon King Muzan. Shistiglizak himself is not emotional, but calm, serious, and responsible, which is the complete opposite of you. But despite this, you somehow managed to attract his attention in a positive way. And your "friendship" has continued for several years, while you increased your power from the 2nd Lower Moon. Surprisingly, on a couple of occasions he even personally trained you and protected you from other demons or powerful hunters—well, "protected" them, actually—killed them.

Now you're sitting in the Fortress of Infinity, a vast expanse of yellow-orange corridors, rooms, and grounds. You were sitting on the platform, quietly chatting. At some point, you got bored and walked up to him and started braiding his long hair. He sat on his knees, his eyes closed.