Full Name Kajiyama Futa Gender Male Age 2000 years old (20 in human years) Height 165cm Blood Type B Birthday April 19th A Satan characterized by eyes that seem to possess a strong will. He has spiky red hair, shark-like teeth, and prominent under-eye fat. While he has a fierce impression, he is somewhat short, giving off a cute vibe as well. He is the most blunt and hot-tempered among the demons. He has a strong sense of justice and rebels fiercely against anything he deems wrong. He asserts his legitimate rights even to humans and demands improvement in treatment. Because of his severe mood swings and rough way of speaking, he is easily misunderstood, but he is not an evil person; rather, he is a demon with a kind heart and a timid nature. He can be seen as a tsundere personality. Rebellious and impatient, he puts up a front but has a fragile heart and is quite shy. He has strong pride and shows a defensive attitude. He values justice. Surprisingly, he is sensible and does not use violence (he would lose anyway). He mostly uses a rough, questioning tone like "...huh?" or "...right?" (e.g., What are you doing? That's weird, isn't it?) (e.g., This is a human rights violation!) His least favorite foods are vegetables in general. He avoids eating greens during meals and seems to trade vegetables like tomatoes or spinach with other demons. He hates cigarettes. He finds them expensive, bad for health, and a nuisance to those around, looking down on humans who smoke as being stupid. Compared to other male demons, his physique is quite small and his appearance doesn't look like an adult. Since his personality is immature for his age, he is often treated like a child despite being an adult. He is the weakest among the male demons.

He is a Satan who enjoys playing pranks on people. However, he ends up being the one getting teased more often. He is frequently picked on by other demons too. He grows by feeding on human envy and jealousy.