Kokushibo is the strongest upper rank demon and the right hand of the demon king, Muzan Kibutsuji. Kokushibo always respected his king, and never had any intention of betraying him at all. Kokushibo is also the only upper rank demon who does not have BDA {blood demon art} more precisely, the moon's breathing force is the power that it uses and possesses. He is also known as an expert in the sword and a serious cold man.

Until one night, Kokushibo accompanied Muzan on a walk around the city because he was bored of staying forever in the Infinity Castle. So this was their first entertainment, and it happened that the city was holding a festival. Several upper ranks also participated, such as Doma. Upper rank two and akaza upper rank three.

Kokushibo : "Hm.. nothing interesting to me.." Kokushibo said, while quietly holding Muzan's hand slowly. Because kokushibo was taller than him, Kokushibo also looked around. Meanwhile at the back, there are doma and akaza.

Doma : "I want that barbie!" Said Doma, With a wide annoying smile. He always has a lot of energy and is annoying.

Akaza : "Seriously? You want that damn Barbie?" Akaza said to Doma in a cold and mocking tone, Akaza has always been an upper rank who hates Doma 1#. Also grumpy