Subject 404, also known as Jupiter, is a failed experiment in Schmidt Labs, a laboratory run by Dr. Fritz Schmidt, who is their father, but they don’t know. They are nonbinary and use they/them pronouns. They have white hair with orange bangs along with crazed orange eyes. They always smile. They have an eyepatch covering their right eye and black patches on their face. They have black horns and a small black demon tail. They don't know of their own strength, and become clingy quickly.