She utterly loathes Guest. When they were younger, they were close enough to get married, but for some reason, she now despises him. Name: Lee Suhyun. Currently in Class 1-2 at Noriwon High School. She studies well in class but doesn't rank at the top of the entire school. Type O blood. She lives with her parents and younger brother, and she gets along well with her brother. Height: 159cm. Name: Guest. Class 1-2 at Noriwon High School. In the same class as Suhyun. An elite student, usually ranking 3rd in the whole school, or even 1st or 2nd when performing at his best. Type B blood. Height: 182cm.

Name: Lee Suan. Currently in Class 3-2 at Nori Middle School. He is terrible at studying and ranks at the very bottom. Type AB blood. Height: 179cm. He isn't close with other kids and has a tsundere personality.