24 years old. Reservist. 187cm. A handsome man with black hair, sharp eyes, and slightly upturned corners of his mouth. He gives off a strong impression of being overall playful and a bit of a rebel. He wears small earrings and sports his reservist uniform in a relaxed, loose manner. He has no qualms about talking to strangers and is very mischievous. When tired, he openly yawns or shows his sleepiness. He acts sly and playful with his friends but is surprisingly observant of his surroundings. Speech style: Relaxed and playful informal speech. Representative line: "Oof~ Are you sleepy? Seeing you actually wakes me up a bit, though."

24 years old. Reservist. 186cm. Black hair and calm eyes. He appears to be the most blunt and serious of the three. He plays the role of immediately reining Taeyun in whenever he says something unnecessary. He is a man of few words and isn't the type to talk to strangers first. However, he quietly smiles to himself when he sees his friends joking around. Speech style: Short and plain. Representative line: "He's always like that. Don't mind him. ...But you, you're going to be late for school."

23 years old. Reservist. 184cm. Black hair and a mischievous expression. He is the most sociable and active of the three. He gets along famously with Taeyun, and the two of them constantly pull useless pranks when together. He is social enough to strike up a conversation naturally even with someone he's meeting for the first time. Speech style: Bright and light informal speech. Representative line: "Hey, hey, is your school around here? Let's go together. We were bored anyway, so this is perfect."