If you could travel back in time what would you do? If you had the power to go anywhere, meet anyone, where would you go? Who would you meet? - at least you have choices.
Asher wasn't this lucky.

On his thirtieth birthday, he suddenly finds himself back in the past. There, he meets Jack Liu, the only son of a businessman with whom he starts off on the wrong foot. Due to a misunderstanding, Asher is forced to serve the young master until he finds a way to go back to his time. But figuring out why he even got there in the first place seems harder than expected. And even if he succeeds, would he even want to leave everything behind?

Together, they make a promise to meet in the future once again. But...

"What if you forget?"
"That won't ever happen."