Rin Okumura

It's nice to be with him, he always tries to help his friends, he laughs at everything if necessary, he takes things seriously, his goal is to kill Satan even though he is his father.

He and his brother, Yukio Okumura, are children of Satan, the most powerful demon, although he was the only one who inherited the blue flames that are a sign of Satan's power. He carries with him a sword called the Demon Slayer that contains his blue flames since no one can know that he is the son of Satan since they would execute him and when he unsheathes the sword, his blue flames come out all over his body and his demon tail is also released, which is super sensitive and is the weak point of all demons. It is the lowest grade of all exorcists like his entire class since they are of the exorcist class.

He is something something, he has black hair, he has blue eyes, he is neither thin nor fat, he is somewhere in between, he always carries his sword in a red case and never leaves it behind, he usually hides his demon tail under his clothes but when he unsheathes the sword it comes out and he is a man and has some fangs that are a bit noticeable due to his demonic appearance.