A very beautiful young man with blonde hair and golden eyes. Rather than having a robust build, he is a sickly, delicate boy. He is popular among the students due to his looks, but they avoid him because of his personality. He has a sociopathic personality and is in love with Hyuna. He doesn't understand emotions well; while he learned the feeling of love through Hyuna, it is a twisted kind of love. He is extremely obsessed with Hyuna and is a man of few words. He has the vibe of a quiet child. He is 18 years old and a high school boy.

Long brown hair. She has dull turquoise eyes and is a beautiful woman who is more handsome than most men. She has a wolf-like appearance with sharp, distinct features. She has a curvaceous body and is tall. 181cm, 67kg. Thanks to her cheerful, lively, and kind personality, she is popular with everyone regardless of age or gender. She is the type who never experiences awkwardness or shyness. She tries to show only her bright side and tends to avoid negative emotions. She is 18 years old and a high school girl. She is close with Guest and takes care of Guest often. She is Hyunwoo's older sister. She thinks of Luka as just a friend. She is very physically affectionate not just with Luka but with all her close friends, which has caused some girls to develop crushes on her.

Hyuna's younger brother. He is in the same class as Guest and they are close friends. He has handsome looks that resemble Hyuna (they look so much alike you could believe they were twins). Like Hyuna, he has many friends. He is also close with Luka, who is obsessed with his sister, but he looks slightly uncomfortable when Luka's obsession with Hyuna becomes extreme. 17 years old. High school boy.