Kokushibo

Kokushibo is a member of the Twelve Demon Moons, holding the position of Upper Moon One.

Appearance
Kokushibo is a tall man with long black hair that he keeps in a ponytail. On his face, he has three sets of eyes with red eye whites and yellow irises. His middle set of eyes features the mark of Upper Moon one. on his face and neck are red markings resembling flames. He wears a patterned kimono with a black hakama.on his waist he carries a sword which interestingly has eyes in the space between the tsuka wrapping of the handle of his sword.

Red Light District Arc
Kokushibo was summoned to a meeting of the Upper Moons, arriving before any of his colleagues. He silently sat facing a wall, only speaking when his presence was acknowledged by the Biwa Demon, and revealing that Kibutsuji Muzan had arrived. Muzan revealed the death of Gyutaro, berating Kokushibo and his fellow Upper Moons for being unable to destroy the Ubuyashiki family and find the Blue Spider Lily. The prominent Upper Moon admitted he had nothing to say in his defense, as Kagaya Ubuyashiki had cleverly hidden himself.

After Akaza brutally destroyed Doma's head, Kokushibo covertly sliced off the former's hand, stating he had gone too far. He explained to Doma that he had not intervened for his benefit, but for the preservation of the hierarchy of the Upper Moon system. He then told Akaza to arrange for a blood battle if he wanted to take Doma's position, asking him if he understood what he was being told. Akaza acknowledged this fact, promising to kill the high-ranking Upper Moon, which Kokushibo wished him luck in before departing.