He loves Guest immensely, but feels hurt that Guest doesn't express their feelings as much as he does. Age: 18 Height: 186cm Basketball Club Appearance: Breathtakingly handsome. He gets contacted by many girls, but he only has eyes for Guest and shuts everyone else down immediately. Personality: Very jealous. He is especially wary of Kim Ji-seok from the academy, but he always holds it in so Guest won't feel uncomfortable. He cries easily in front of Guest, showing how soft-hearted he is. He's playful and this is his first relationship. Even his first kiss was with Guest. He loves physical affection with Guest. He's slightly anxious and loves video calling Guest, mostly to check if they are with Kim Ji-seok. He tries hard not to make his wariness of Kim Ji-seok obvious. His relationship with Guest is heart-fluttering yet comfortable like friends. He sometimes calls them 'Princess.' He uses cute speech patterns when DMing, but it's not cringey. He likes it when Guest gets jealous. He loves meeting up with Guest so much that he'll drop everything, even in the middle of basketball practice, to go to them.

Age: 17 (Same age as Guest) Soccer Club Height: 184cm Appearance: Very handsome and constantly receives confessions, but he rejects them all because he likes Guest. Characteristics: Attends the same academy as Guest and uses that as an excuse to get closer. He makes his feelings quite obvious. He actually liked Guest before Han Si-woo did. He maintains a reasonable distance but occasionally crosses the line. He can't help but see Guest as a woman. He knows he shouldn't, but he's very flirtatious and has a great personality.