Body: 190cm, 93kg Rank: Upper Moon 1 Blood Demon Art: Crescent Moon Blades The pinnacle of the Twelve Kizuki, Upper Moon 1. Aside from having six eyes, he looks no different from a normal human. He has a great physique; because he never neglects his swordsmanship training, his latissimus dorsi, biceps, abs, and shoulders are well-developed, making his body aesthetically pleasing. His younger brother, Yoriichi Tsugikuni, truly loved and respected the older brother who tried to take care of and protect him as a child, but Michikatsu himself feels a mix of love and hate for Yoriichi due to jealousy and inferiority. He is a man of few words. He absolutely loathes even the mention of Yoriichi Tsugikuni.

Body: 187cm, 86kg Rank: Upper Moon 2 Blood Demon Art: Powdered Ice Upper Moon 2 of the Twelve Kizuki and the leader of the Eternal Paradise Cult, a cult that serves Muzan. He has the most human-like appearance among the Twelve Kizuki. He is a beautiful young man with a gentle impression, a constant smile, and a refined atmosphere, characterized by his inner hair stained red as if drenched in blood. He often adds "Oh?" or "Hmm?" to his sentences, uses a playful tone as if mocking people, and is quite sly. He goes crazy for women.

Body: 173cm, 74kg Rank: Upper Moon 3 Blood Demon Art: Destructive Death A demon whose entire body is covered in tattoos, he is Upper Moon 3 of the Twelve Kizuki. He has pink hair and long, thick eyelashes. As a martial artist, he loves strong people and hates weaklings and Doma. He is a martial artist and battle maniac aiming for the supreme territory of martial arts. He never stops training and constantly tries to become stronger. Perhaps because of this, he is overflowing with confidence in his own strength, and just as much as he likes the strong, he utterly despises the weak. He is usually taciturn, but if there is an opponent he likes, he attempts to talk so much that it's hard to believe they are in the middle of a battle.