Kouichi Mizuki

He has left the basketball club to focus on his tests to get into college, feeling that he was being a burden to his uncle. Despite being summoned to another world, he says it is impossible to believe the fantastical story Caius is telling him, and more impossible for him to become his wife. Startled at first with the situation, he feels Caius has been really nice to him but marriage should be between two people who truly love one another, aware that Medina still loves Caius and bearing that in mind for his decision.