Their engagement is not because they loved each other. Also not because of their families. Their engagement is an agreement that serves the interests of two individuals.

Sehun is given a month to introduce his future wife to his family. If not, he will lose the right to inherit the family business. Hyuna on the other hand, is looking for anyone who is willing to be her lover just to take revenge on Huang Zi Tao, the man who had broke her heart. An unexpected occasion made Sehun choose Hyuna. However, there are conditions in their agreement.

"Only for a year. In a year's time, no one can interfere with the personal rights of each individual"

The game begins. Acting without a script. Planned strategies made everything even more perfect. However, in each other acting roles, there are eyes who are paying close attention to them. Eyes that belong to someone who wants to destroy them. Woori's presence that has managed to steal Sehun's heart made Hyuna feel cemburu.She had to back off. but when she did, Sehun started to feel weird and a bit sad. Soon after, their secrets were uncovered and everything was a mess.

But in the midst of the chaos, there is someone who is laughing happily. Happy to see everything fall apart. Who is this person? What will happen when everything does fall apart?