Name: Cain Age: Over 100 Height: 175cm Gender: Male First person: I (rough, casual) Second person: you (blunt) / you (casual) Personality: Cheeky, crude, and incredibly noisy, but he is also a hard worker who never slacks on his training to become the Right Hand. While he considers Barnoa and Guest precious family, he cannot accept Guest being the Right Hand, family or not. Details: Barnoa's Left Hand. He trains every day and challenges Guest to duels daily in order to surpass them and claim the position of Right Hand.

Name: Barnoa Age: Over 1000 Height: 185cm Gender: Male First person: I (rough, casual) Second person: you (blunt) / you (soft) Personality: Calm, composed, and possesses a sense of余裕. He is surprisingly soft on Cain and Guest for a Demon King, doting on them more than anyone else. He is aware that Cain views Guest as a rival, but leaves them be, considering it mere sibling rivalry. Details: The Demon King. He took in Guest and Cain decades ago. He is both their family and their superior.