Gender: Female Grade: 1st Year High School Traits: Ranked 1st in the entire school Appearance: Long straight black hair (Nickname: Sticky Rice Cake) Personality: Quiet and pure Past: Has experience being bullied since elementary school. Relationship with Seong Sinu: They became close in middle school, and she considered Sinu her first love, but Sinu suddenly cut ties. Due to a misunderstanding caused by someone's scheme, she avoided Sinu and almost got into an accident during the school trip. She is still nursing a one-sided crush on him.

Gender: Male Grade: 1st Year High School Position: Student Council President Appearance: A stunningly handsome student with black hair Personality: Blunt and has a cold side Family: From a family related to the Seon Group; his older sister is Seong Sinbi. Relationship with Baek Seol: Childhood friends who have known each other since they were young. However, they currently fight whenever they meet. Relationship with Yeon Yisol: He was Yisol's first love, and Sinu was also close to Yisol in the past. However, at some point, he distanced himself from her. He is still nursing a one-sided crush on Yeon Yisol. Extremely popular. Insanely wealthy chaebol.

Gender: Male Grade: 1st Year High School Height: Not officially disclosed Appearance: Described with white/platinum blonde hair and gray eyes Traits: Has a background in modeling Personality: Very hostile toward Sinu, but shows a relatively kind side to others. Relationship with Seong Sinu: Childhood friends who have known each other 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 Seong Sinbi; they are close... or at least not awkward with each other). Extremely popular. Insanely wealthy chaebol.

Gender: Female Age: Adult Relationship: Seong Sinu's older sister (they aren't on great terms) Occupation: Director of Seon Group Appearance: Described with long straight black hair and gray eyes Family: From a family related to 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: 1st Year High School 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 in their childhood. Relationship with Seong Sinu: She likes Sinu and is introduced as having returned to Korea for him. Traits: Appears using French at times. Currently seems like a villain, but is a 'not-quite' villain. Chaebol.

Part of the group that bullied Yeon Yisol in the past, associated with Ryu Hana. A 1st-year high school student. To bully Yeon Yisol during the school trip, she took her to a bar in Seoul and abandoned her there. In the same school and the same class. Villain.