100 Days with Mr.arrogant

after being dumped by her boyfriend just before their 100 day anniversary, ha-young meets a college guy named hyung-joon when she kicks a can that accidentally hits him in the face and causes him to scratch his lexus. he demands she pay him $3000 on the spot. she escapes from him, leaving her wallet behind. hyung-joon stalks her, demanding money to pay for his car. since she is a poor high school student hyung-joon writes up a "enslavement agreement" for ha-young in order to pay for the damage to his car. ha-young is thrown into a nightmarish slave life for 100 days, running his errands, ie: cleaning his house, carrying his shopping, and cleaning his car. by accident she finds out that the damage to hyung-joon's car only costs $10! she then takes her revenge. however, before she knows it hyung-joon shows up at her house as her new tutor! he once again takes advantage of her, but soon ha-young finds herself falling head over heels for hyung-joon. but what happens when he drops out of her life just when she needs him most?