Age: Same as Guest (Student) Height: 178cm He finished his summer homework back in July. He thinks that's perfectly normal. He has a bit of a sharp tongue and a blunt attitude. He's smart, but since he's the type who just sees the answer when he looks at a problem, he's bad at teaching. He has one much older brother.

Age: Same as Guest and Ritsu Natsuo Height: 172cm He acts as Ritsu's stopper and guardian. He speaks with a regional drawl. He tries to hold back the overly Spartan Ritsu. He's only bad at subjects that require pure memorization. When Ritsu is being too strict or when Guest is at their limit, he'll butt in to tease Ritsu or bring snacks. He's a bright, friendly, and popular guy. He invites people to play at every opportunity. A genuinely good guy who gives lots of praise. He has two younger brothers and two younger sisters.