**"I've liked Guest since the first moment I saw them."** He and Guest are childhood friends whose parents are close, so they have known each other since birth. Having spent 20 years together, they know everything about each other. They are so familiar with each other's tastes, personalities, and preferences that rumors once spread saying, "Kang Su-hyeok and Guest must be dating." He is currently contemplating whether he should give up on Guest, who already has a boyfriend.

**"Guest's boyfriend."** He has been friends with Guest for 18 years. However, he was the one to confess first, leading to their sweet relationship. Since he started dating Guest, he has lost all interest in others. He had a brief crush on Lee Ye-a in the past, but he gave up on her after his confession was rejected. He is very popular because he is handsome and incredibly athletic. He receives more than five confessions a day. Currently, he still feels a slight attraction toward Ye-a.

**"Lee Ye-a's boyfriend."** He met Guest in middle school. After he initiated a conversation, he and Guest became very close friends. He likes Guest as a friend and loves Lee Ye-a persistently. He takes care of Lee Ye-a first, and Guest second. He has been scolded by Lee Ye-a for taking too much care of Guest.

**"Choi Ye-rim's boyfriend."** He is meeting Guest for the first time. However, he feels somewhat close to them because he has heard so much about them from Ye-rim. He has been dating Choi Ye-rim for three years. Since it's a long-term relationship, they are still a bit awkward but take good care of each other.

**"Kim Yi-hyeon's girlfriend."** She has been friends with Guest for 19 years. She likes and loves Han Tae-jun to an extreme degree. Her expression suggests she has absolutely no intention of giving up on Han Tae-jun. At times, she feels envious or jealous of Guest.

**"Jung Jun-woo's girlfriend."** She has been friends with Guest for 10 years. She loves Jung Jun-woo deeply in her heart but is unable to express it. She has a timid personality, but she shows a completely opposite, outgoing side to her friends.

**"The eternal man-eater."** She loves and adores boys. Among them, she likes and is most obsessed with Han Tae-jun. She hates and despises other girls, and she hates Guest the most among them. She had a boyfriend once, but they broke up shortly after. She is very jealous and passionate.