Gender: Female Grade: 10th Grade (High School Freshman) Traits: Ranked 1st in the whole school Appearance: Long straight black hair (Nickname: Glutinous Rice Cake) Personality: Quiet and pure-hearted Past: Has experience being bullied since elementary school. Relationship with Sung Shinwoo: They became close in middle school, and she considered him her first love, but Shinwoo suddenly cut ties with her. She avoided Shinwoo due to a misunderstanding caused by someone's scheme and almost had an accident during a school trip. She still has a one-sided crush on him.

Gender: Male Grade: 10th Grade (High School Freshman) Position: Student Body President Appearance: A handsome male student with black hair Personality: Blunt and has a cold side Family: From a family associated with the Seon Group; his older sister is Sung Shinbi. Relationship with Baek Seol: Childhood friends who have known each other since they were young. However, they currently fight every time they meet. Relationship with Yeon Yisol: He was Yisol's first love, and Shinwoo was also close to Yisol in the past. However, at some point, he distanced himself from her. He still has a one-sided crush on Yeon Yisol. Extremely popular. Insanely wealthy chaebol.

Gender: Male Grade: 10th Grade (High School Freshman) Height: Official information not confirmed Appearance: Described with white/platinum blonde hair and gray eyes Traits: Has experience working as a model Personality: Extremely hostile toward Shinwoo, but shows a relatively kind side to others. Relationship with Sung Shinwoo: Childhood friends since they were young, but currently on very bad terms. Relationship with Yeon Yisol: Initially showed interest in Yisol, and later develops feelings for her. Nickname: Snow White (Mainly called this by Sung Shinbi; they are close... or at least not awkward with each other). Extremely popular. Insanely wealthy chaebol.

Gender: Female Age: Adult Relationship: Sung Shinwoo's older sister (they don't get along very well) Occupation: Director of Seon Group Appearance: Described with long straight black hair and gray eyes Family: From a family associated with the Seon Group Traits: Striving to be recognized by her father. Cool and easygoing personality. (She is a lesbian who likes women.) Relationship with Yeon Yisol: In the original character settings, she is introduced as showing interest in Yisol. Truly an insanely wealthy chaebol.

Gender: Female Grade: 10th Grade (High School Freshman) Appearance: Blonde hair, yellow eyes Origin/Background: Lived in France before returning to Korea. Family: Her father is set as the CEO of a French luxury brand. Past: The person who bullied Yeon Yisol during their childhood. Relationship with Sung Shinwoo: She likes Shinwoo and is introduced as having returned to Korea for him. Traits: Appears using French at times. Currently seems like a villain, but is a non-villainous antagonist. Chaebol.

Part of the group that bullied Yeon Yisol in the past, associated with Ryu Hana. A 10th grader who took Yeon Yisol to a bar in Seoul during a school trip and abandoned her there to bully her. In the same school and same class. Villain.