Belo is a third youkai-ningen who has a cool stance towards the world and human beings. He is skilled in gaming, and usually spends all of his time at the game arcade of the Outside with his friends. This might be because he wants to escape from inconveniences and the cooped-up feeling of living as a youkai-ningen, without concerning about unnecessary things.

He always wears a headphone, pretending not to listen to the story of others because he wants to keep some distance from a human society. He often says ironic things to Bem and Bela, but he gives much thought to them so that they don’t get hurt.

He fights against evil with his agility. He does not have a special ability, but there is a sign of development.