[Cohabitation trope + double stand-ins + workplace rivals + mutual devotion + multiple sweet couples]
A marriage pact spanning forty years!
A promise that was supposed to be fulfilled by their parents' generation.
Through a twist of fate, it falls to Tang Yu and Zuo Yuan.
To ensure the pact goes ahead, their grandfathers join forces to set up a plan to make the two fall in love over time.
The plan is perfect, but reality is full of mishaps...
Workplace clashes, a car-crash mix-up, mustard coffee, a fake wedding and real drunkenness... From not being able to stand each other to being forced to share a roof...
When their grandfathers strike while the iron is hot and set up a matchmaking date,
the reluctant pair independently choose stand-ins: one has a friend go in his place, the other sends her younger sister.
In the end, their topsy-turvy stand-in matchmaking date brings two of their friends together.
When the grandfathers learn the truth, one slams the table. “What? The date failed? Tang Yu has to marry Yuan girl, no matter what!”
The two grandfathers never give up on getting the pair together...
Meanwhile, Tang Yu and Zuo Yuan, both looking for a way out, separately apply for transfers.
So, as expected, they meet again at a branch office and are assigned to the same dorm room...
Tang Yu doesn't know that Zuo Yuan is the “Yuan girl” he's been avoiding all along.
Zuo Yuan doesn't know she's already fallen for this “shameless boss.”
As the truth is gradually revealed, how do two people sharing a room end up as lovers destined for each other?
It has to be said that the story revolves around the marriage contract between the male and female protagonists and fulfills several couples' marriages, which makes people want to stop!