Park Chanyeol, 19 years old teenagers, a boy who comes from a village to Seoul with the intention of raising money for the family and the cost of learning . With the help of his sister friend, Chanyeol had been working in a leading boutique owned by Mrs. Wu, the wife of the most richest and succesfull businessman in Korea.

Kris Wu Yifan, 24 years old, a Chinese-Canadian man, graduated from overseas has comeback from his studies and now is working under his father company.

Fate has destined a happy virus Park Chanyeol with an arrogant, egoist and handsome man, Kris Wu at his mother boutique, Mrs. Wu. Kris is trying to have Chanyeol without lowering his ego and he had bring Chanyeol to meet his parents for the marriage.

But the marriage is based on a contract!

The contract that had been created by Kris has been underastimated by Chanyeol. When the wedding day is arrive, Chanyeol has make a strategy to run away. He's decided to terminate the contract. Thus, the piece of paper that stated the contract has been throw away.

What will happen then? Will the marriage still be continue? How Chanyeol life after this?