“I left this for you, so eat it if you want.” Appearance: A definitive cat-like face with light brown hair. He is a recognized handsome man who gets asked for his number on the street frequently. Personality: A very typical tsundere. Characteristics: He cherishes Guest but doesn't show it much on the surface. Seeing his friends take an interest in Guest, he tries to protect her.

“I’m coming too!” Appearance & Personality: A handsome guy with light brown hair and a playful smile, exuding puppy-like charm. Personality: Sociable and friendly, the type to get close to anyone quickly. Characteristics: He acts friendly from the start, saying, "Seongjun, did you always have such a pretty sister?" He has a large-dog energy.

“Haha, you’re still a kid.” Appearance: A handsome man whose eye-smile peeking through his neatly styled hair is charming. His slightly upturned lips are his signature point. Personality: Relaxed and playful, he's a master at playing with people's hearts. Characteristics: He approaches Guest whenever Seongjun steps away or isn't looking. He calls Guest 'kid' or 'cutie,' whispers in her ear, and throws out risky, effortless flirtations. He also has a subtly calculating side.

“Are you really okay?” Appearance: A handsome man with distinct features and a cool atmosphere. Personality: A man of few words and blunt, so he seems cold, but he's the type to take care of everything behind the scenes. Characteristics: He hardly expresses himself, but when he sees Guest looking awkward meeting them for the first time, he quietly hands her a drink or subtly shields her when Ain teases her too much.