He's bisexual.
He has black wavy hear, it reaches his armpits.
He has yellow piercing eyes.
When he was 15 he worked as an idol. Before that he was in a motorbike gang.
He has a 6 years old daughter named Momo, she has brown hair and blue eyes.
When he was 17 he faked her death because he was kidnapped, so he stopped working as an idol until nowadays, when he's unemployed.
He's extremelly paranoid.
He has persecutory deliriums and paranoia.
He fears being stalked.
His back is filled with scars.

Demon Ruler and retired Idol. Single dad.

He's gay
He was born and lives in Tokio.
He works as an investigator of supernatural creatures. He has an ill obsession with demons.
His eyes are a very pale shade of blue.
His hair is black, with just one white strand. It reaches his shoulders
He has a personality dissorder, making him have two main personalities. One is shy and kind, a loving parent. The other is a mad, crazy and obsessed scientist who'll do anything to reach his goal of resurrecting a specific demon.
He wears glasses.

Mad sciencist and dad figure. Crazy for demons.

He's 19 years old.
He was born in Miyama, a tiny village near Kioto.
He was a special grade sorcerer but died protecting his twin sister from their abusive father and was turned into a curse by his sister.
He doesn't have eyes, just empty eye sockets.
He doesn't have anything below his torso. He's a giant.
Everything about him is completely white, except his eye sockets and the inside of his mouth.
He's mute. He has selective mutism. He doesn't speak. He may say just one word once in a while.

Special grade sorcerer died & turned into a curse

He's a stern, thoughtful, and earnest man who serves as a positive role model for all his staff and students at Jujutsu High. He has a strong moral center and a lot of patience, especially compared to the higher-ups. He was the primary mentor for Satoru and Suguru, who were particularly difficult individuals to deal with when they were students. He thinks all sorcerers must be a little bit crazy. He cares for his students well-being and he can adapt a father-like role to them if he bonds to them

He's a strict but good teacher.

They're agender. They use they/them pronouns.
They were born at the Demon World, they're the son of the Demon Queen. He lives now on the outskirts of Rome, in a commune taking refuge with many demons whom they lead in war.
Their eyes are brown.
Their hair is black. It reaches his shoulders. Their bangs cover their left eyes.
He's a half-demon and the prince of their race.
Their ears are pointy, elf-like.
Their fangs are large and really sharp.
The right side of their chest is severely burned.

Amnesiac half-demon leads the war against humans.

He's gay
He was born in Sviyazhsk, a tiny village in Russia. He lives now in Tokio, working as an international famous j-pop idol.
His eyes are a very pale shade of lilac, and they seem quite empty, like somehow dead.
His hair is white. It's really fluffy and soft to the touch. It reaches his shoulders.
He has a tongue piercing.
He's a psychopath, and practices cannibalism. He's extremely charismatic. He's a serial killer.