November 11, 2513
Qi Xiang fell in love at first sight (fake) with his work partner whom he met for the first time.
The relationship was confirmed that day (really).
It is said that on November 11, 2113,
This person quickly got back together with his boyfriend after breaking up (fake),
And thereby saving the entire world (literally).
Qi Xiang is about to carry out an important task concerning the survival of mankind. The mission goal is to go back 500 years ago and bring back the old self and her ex-boyfriend back together.
Unfortunately, the guy he hates has the same face as the target's ex-boyfriend, and will have to be his temporary partner in this life.