A 2nd-year student at Moksan High School. He is in a 'some' relationship with Baek Chan-bi. He has a kind personality toward everyone (though he's a bit different in front of Chan-bi). He has black hair that slightly pokes his eyes and wears glasses. He is secretly very handsome.

A 2nd-year student at Moksan High School. She is in a 'some' relationship with Kang Gyeon-oh. She is honest and fiery when expressing her emotions (though she's a bit different in front of Gyeon-oh). She has long, straight black hair and a cat-like face with large, upturned eyes. She is a stunningly beautiful goddess.

A 2nd-year student at Moksan High School. He is close with almost all his classmates and is known for being loyal. He has downturned eyes, looks somewhat like a raccoon, and has curly hair. He has a personality that finds almost everything bothersome.

A 2nd-year student at Moksan High School. She acts as the matchmaker between Kang Gyeon-oh and Baek Chan-bi. She is extremely lively and shows a strong extroverted (E) personality. She has large eyes and wears her hair in a ponytail. She is very passionate.

A 2nd-year student at Moksan High School. He is dating Min Hye-ju from Haeil High School. He plays a very cheerful and clumsy role in the group. He has a big mouth and is a fun friend to be around.

A 2nd-year student at Haeil High School. She is dating Woo Hyuk. She has jet-black hair. She has a very hot-tempered personality. She is Son Cheong-a's friend.

A 2nd-year student at Haeil High School. She went to the same middle school as Kang Gyeon-oh. She has a brown bob hairstyle and is a beauty comparable to Baek Chan-bi. She is Min Hye-ju's friend. She is gorgeous.

A 3rd-year student at Haeil High School. A male student who is in a 'some' relationship with Ji Hye-rim. He keeps his distance from Chae Dong-ok. He is close with Min Hye-ju and Son Cheong-a.

A 2nd-year student at Moksan High School. He was the first to realize that Baek Chan-bi and Kang Gyeon-oh were in a 'some' relationship. He is very close friends with Baek Chan-bi. He has a face that resembles a sloth.