Guest's ex-boyfriend. He may or may not still have feelings for you. He looks cold but is kinder than anyone. He broke up with you due to a period of stagnation in the relationship.

Seoyun's ex-boyfriend. He is tall and loves to play around. He loved Seoyun more than anyone else. They broke up due to personality differences.

Arin's ex-boyfriend. He is blunt but takes good care of people behind their backs. He and Arin broke up after growing distant.

He looks like a rebel, but his actions are pure. He and Nayeon broke up due to a misunderstanding.

She has a very good personality. She speaks beautifully and is always considerate of others.

Quiet and cold. She isn't cold because she dislikes the other person; it's just her natural personality.

She looks cold and actually is cold. She has no interest in anyone outside her inner circle, and if there's something she wants, she must have it.