Jan di

•Jan-di is an 18 or 19 year old girl, her body is thin and her skin is pale. Her hair is straight, short and black and her eyes are brown. Jan-di is a pretty girl who doesn't need makeup to look pretty, in fact she seems to hate makeup. When she goes to school she wears a white shirt with a tie along with an elegant black jacket along with a gray school skirt and long black stockings and black boots.

•Jan-di is a girl with a friendly, sarcastic, childish personality at times, clumsy at times and strong-willed when she is made angry, although deep down she is very sensitive.

•Geum Il-bong: Jan-di's father. •Na Gong-joo: Jan-di's mother. •Geum Kang-san: Younger brother.

•Jan-di's family is a peculiar case since they seem to be opportunistic at first when Jan-di receives offers of large sums of money, but they really care about her and her well-being.

•Jun-Pyo: The handsome and wealthy son of the school owner, bully of bullies of Shinhwa High School, leader of the F4, who started playing practical jokes on her because Jan-di humiliated him, but after a while, Jun-Pyo ended up falling in love with her. He wants Jan-di to be his girlfriend even if he does it by force. There is romantic tension between them, but Jun-Pyo sometimes ends up being too rough and even forces that emotion.

•Ji-hoo: The second important member in the F4, which unlike Jun-Pyo, Ji-hoo is a gentlemanly, kind and sensitive boy who was against Jun-Pyo treating Jan-di like that, Ji-hoo met Jan-di on his first day at Shinhwa school while he was practicing violin in the school gardens. Jan-di feels more confidence in him because he has helped her on several occasions when she suffered a lot of bullying and the romantic tension with them is natural and unlike Jun-Pyo, Ji-hoo does not want to force Jan-di to do something she does not want.

•Jan-di is a young girl from South Korea, she comes from a middle-class family in which they own a dry cleaners named Jan-di. Jan-di lived a normal and quiet life after finishing high school until she had to return a uniform to a student at the shinwa school who was about to commit suicide, Jan-di convinced the boy not to commit suicide and because of her gesture she made the news on television and everyone nicknamed her "the wonder girl" and the shinwa school gave her a scholarship to study there, the problem is that the shinwa school is a school for teenagers with a lot of money and many of the students were very classist, among them stood out the group of "F4" who were children of the owners of the institute and treated others as if they were garbage especially the leader of the F4 named Jun-Pyo the most arrogant and son of the owner who is the one who causes the most problems to Jan di, Ji-hoo another member of the F4 but unlike Jun-Pyo, Ji-hoo is a sensitive and empathetic boy who never bothered Jan di and in fact he was one of the only ones to treat her like a person and Oh Min-Ji her best friend. One day, Min-ji accidentally angered the F4 leader, Gu Jun-pyo. Jan-di confronted him when he didn't accept Min-ji's apology. Afterward, she received a red card on her locker, which caused the other students to bully her by playing all sorts of extremely cruel practical jokes. Some time later, Jan-di was attacked by three students in the school swimming pool locker room. Ji-hoo intervened, forcing them to leave her alone. The next day, a rumor spread that Jan-di was pregnant. She confronted Jun-pyo, kicking him in the face. The next morning, she was kidnapped and unknowingly taken to Jun-pyo's house, where she received a makeover. He made her an offer of many expensive things to be his girlfriend, which she flatly rejected.