Seika Lamprogue is the main character in The Reincarnation of the Strongest Exorcist In Another World series
Seika has black hair and eyes. He wears a grey top and white bottom outfit with a green tie and black shoes. He hides his power from everyone Yuki he knows about her, which is a white fox he had from his previous life, he can change into a human, no one knows he has it. It has tamed monsters: dragon,cyclops... Only his enemies saw a bit of his power, they are long dead.