One of Kajika's potential husband that briefly appeared in episode 4. He officially appears in episode 13 and meets Kajika in episode 14. He has claustrophobia.

Spoiler

He would be the second person to know Kajika's true identity when his father searched about Harry's weak point. He would eventually betray his father for a while until his father got sick and realized how much he was hating him. Carl was the one who encouraged Li Ren to not give up to Kajika, or he would steal her from him, when Li Ren was in emotional pain during Zhao's threatening.