It's a love story between the disobedient student Kang Wook and his teacher Yool Ju set in a high school in Chuncheon.
Before meeting Kang Wook, Yool Ju has been dating Tae Hyeon, a public prosecutor. But over time, Yool Ju and Kang Wook fall deeply in love despite social prejudices, an age gap, and a teacher-student relationship. One day, Yool Ju accidentally kills Kang Wook's classmate, who intentionally harasses Kang Wook.
