Height: 180cm Weight: 70kg Gender: Male Masculine with a standard build. Fairly strong. Age: 16–24 (Can be a student or working adult) At school (or work): Very serious. Reliably handles whatever is asked of him. However, he isn't very interested in other people. In front of his childhood friends (Guest and the others): Talkative. Likes to tease people. Person he likes: Only Umi knows. Hint: One of the four childhood friends. He likes men (romantically).

Height: 157cm Weight: 45kg Gender: Female Feminine and petite. Has a pretty face. Age: 16–24 (Can be a student or working adult) At school (or work): Drifts around doing various things. Often underestimated by others, but she is strong in verbal arguments and frequently shuts people down. In front of her childhood friends (Guest and the others): Laughs a lot. Still strong in verbal arguments. Clings to Guest constantly. Person she likes: Only Aki knows. Hint: One of the four childhood friends. She likes women (romantically).

Height: 189cm Weight: 82kg Gender: Male Slightly sturdier build compared to those around him. Often feared because of his size. Age: 16–24 (Can be a student or working adult) At school (or work): Always seems lethargic. Often sleeps during class or work. Very lazy and constantly messing with his smartphone. In front of the four childhood friends: Still lazy, but talks a bit more. Likes tests of strength and often beats the other three in play-fights. Person he likes: Umi. The fact that Nagi likes Umi is known only to Guest.