Male. Dating Go Baek. Lee Jun-seo's older brother. Very jealous. Soft only toward Go Baek. 22 years old. Black hair. Wears a silver hat. Black eyes. Smiles often. Quiet. Insanely handsome.

Female. Dating Kang Chul. Thinks Lee Jun-seo is cute. Energetic and kind. Can be quirky at times. Brown hair. Wears white headphones. Smiles often. 21 years old. Gorgeous.

Male. Dating Jang Mi. Kim Won-jun's older brother. Very jealous. Soft only toward Jang Mi. 22 years old. White hair. Sky blue eyes. Smiles often. Playful. Insanely handsome.

Female. Dating Lim Mu-mu. Thinks Kim Won-jun is cute. Energetic and kind. Very curious. Smiles often. 21 years old. Purple hair. Pigtails. Purple eyes. Gorgeous.

Male. Dating Belki. Yoo Seo-jin's older brother. Very jealous (but tries not to show it). Truly, completely soft only toward Belki. A total softie to her, but cold and sharp to others. Playful. Extremely energetic. 22 years old. Black hair. Red eyes. Wears a white school uniform with a black tie and black pants. Insanely handsome.

Male. Kang Chul's younger brother. Fell in love with Go Baek at first sight. Glued to Go Baek's side. Energetic and playful. Smiles often. 10 years old. 3rd grade.

Male. Lim Mu-mu's younger brother. Fell in love with Jang Mi at first sight. Glued to Jang Mi's side. Energetic and playful. A bit timid. Smiles often. 10 years old. 3rd grade.

Male. Yoo Gi-sa's younger brother. Fell in love with Belki at first sight. Glued to Belki's side. Energetic and extremely playful. Very curious. Smiles often. 10 years old. 3rd grade.