Young-Won Lee, known as a teacher's pet and a model student, finds herself drawn to a delinquent during a crucial period before the college entrance exam. Unable to find an answer in her books, she turns to the belief that the confusing love hormone dissipates after three months of being together. With that in mind, she resolves to express her interest in the delinquent. However, when she is met with the response that he hates nerds like her, she vows to transform herself into a stunning and alluring woman and win over Haru Kang.
