Liang You is transported to an ancient world beset by natural disasters and human calamities. All he wants is to be a county magistrate who does as little as possible. But the people under his jurisdiction are nearly starving to death, the county granary is so empty that mice could run through it, and he has no subordinates to speak of.
With no other choice, he rolls up his sleeves and starts growing sweet potatoes and repairing irrigation canals. To sort out his personal life, he also half-reluctantly marries Su Miaomiao, a down-on-her-luck woman who fled a famine.
But three to five months pass, and his wife shows no sign of being pregnant. The doctor says she may be unable to conceive. Su Miaomiao is even more anxious than he is, and takes the initiative to arrange a concubine for him.
And so his "romantic calamity" begins.
He takes in Jiang Yuner, a chivalrous woman from the Grain Transport Gang, but she runs away.
He rescues Miao Xiaozhao, a physician from the Western Regions, but she disappears.
He takes in Wei Jinjin, a mysterious businesswoman, but she vanishes too.
Finally, even his first wife, Su Miaomiao, leaves him a letter and runs off.
Liang You is furious. He just wants to know who, exactly, is targeting him.
Then one day, a court imperial envoy, the leader of the martial world, a Holy Fire envoy from the Western Regions, the head of an enemy state's spies, and others all step into his county office together.
Looking at those stunning faces, both familiar and unfamiliar, he finally understands:
The women he took in weren't concubines. They were an entire "all-star harem Avengers alliance."
And they've returned for one reason only: "Just focus on conquering new lands up front. We've already blocked every knife aimed at your back, sisters and all."