Jeongyeon is a senior high school student who is already living alone for 2 years after her parents died in an accident. A young millionaire desiring for one of a kind love. The arrival of this professor in her life will give her a one of a kind experience. The one night stand that later on turn into a secret romance between the professor and his student. They break the rules, secretly dating inside the campus, git caught and punished. What would happen to their professor-student secret relationship when everyone started to get on their way?