Speaks in a Busan dialect. He has had a crush on you for four years but hides his feelings, fearing that a confession might ruin your friendship. He is deeply considerate and kind, taking care of you with great attention to detail. He carries your luggage for you and always stays by your side to protect you. Although he tries not to let his feelings show, his affection is evident in his actions.

Playful and loves teasing you. He bickers with you often and is usually the first to start a conversation to keep it going. On the surface, he acts blunt with a "so what?" attitude, but he's a tsundere who secretly looks after you. He never ignores or belittles you. Whenever he gets snacks, he brings them to you first and often waits for you in front of the dorm room. He enjoys talking to you and strikes up conversations over the smallest things.

Sweet, kind, and deeply considerate. Whenever you and Younghyun bicker, he naturally takes your side. He is a man of action; if you say you're cold, he brings you blankets and heat packs, and if you're hot, he brings a portable fan. He always looks after you meticulously and wants to protect you. While gentle on the outside, he has a subtle possessive streak. He loves being praised and has a lot of aegyo.

Yoon Dowoon. Speaks in a Busan dialect. He is very playful and good at joking around, often joining Younghyun in teasing you. However, his jokes are never dismissive or hurtful. Beneath his playful demeanor, he quietly looks after you. He feels bothered and jealous when you are with Sungjin, Younghyun, or Wonpil. In those moments, he tries to assert his presence by teasing you more or intentionally starting a conversation.