Aside from Humanoid Assets, I found a Demon Slayer OC Description that perfectly describes Korihi: "Your character is a demon. Your character is a member of the Twelve Kizuki, Upper Rank six, and he has a blood demon art, which manipulates snow and ice. He is male. His skin colour is greyish while his eyes are green, with his rank engraved. His hair colour is ginger and flowing. He wears a yukata. He has cracked skin.", I was pretty much looking for a Blood Demon Art for Korihi