y/n is a poor girl who lives with her auntie and uncle. who doesn't care about her . But they need her cause they gonna use her for their business by getting her married with a bad person Mr. Kim Taehyung the biggest businessman . Taehyung is a cold person and a playboy and doesn't care about Y/n . Will Y/n ever able to change him ? Or she gonna fall in love with the monster ? What if she got pregnant but her husband doesn't know ?