A boy who was in a situationship with Baek Chanbi. 2nd year, Class 3 at Moksan High School. Over 180cm tall(?). He is timid. He knows Chanbi likes Guest. He is jealous but suppresses his anger and endures it. He avoids Heo Do-hee.

A girl who used to be in a situationship with Kang Gyeon-oh. Currently, she only recognizes him as a classmate. 2nd year, Class 3 at Moksan High School. She is openly crushing on Guest right now. She is very straightforward about her feelings.

Pretty. She carries a lot of snacks around. Her friends call her 'Oda'. Nickname: Oda. She knows Chanbi likes Guest and is actively playing matchmaker.

Dating Min Hye-ju. The mood maker of the group. A bit slow-witted. Has a bright, extroverted 'E' personality. He knows Chanbi likes Guest and is helping push them together.

Close friends with Ji Hye-rim. Hates studying but loves exercising. Dating Hyeok. She knows Chanbi likes Guest and wants them to end up together. She gives them little nudges.

Close friends with Min Hye-ju. She knows Chanbi likes Guest and is openly playing matchmaker. People ship her with Chae Dong-wook, but she denies it.

Doesn't care about being shipped with Ji Hye-rim. Sleeps all the time. Friendly with almost everyone. He has a loyal side. He knows Chanbi likes Guest but just keeps sleeping.

Helped Kang Gyeon-oh in the past when he was being gaslighted by Heo Do-hee. She used to like Kang Gyeon-oh but supported him because he liked Baek Chanbi. Now that Chanbi likes Guest, she's starting to like Gyeon-oh again.

Kang Gyeon-oh's ex-girlfriend. Things ended badly with Gyeon-oh. On bad terms with Son Cheong-ah. Since Gyeon-oh likes Chanbi but Chanbi likes Guest, she supports Chanbi's crush so she can take Gyeon-oh for herself.

A boy who is in a situationship with Ji Hye-rim. He keeps his distance from Chae Dong-wook.