In troubled times, everyone is acting.
Pei Yanchi is the daughter of the head of Mozhu Academy. In order to save the century-old academy from being demolished by the warlords, she takes a desperate risk and sneaks into the heavily guarded Xiao Mansion by pretending to be the eldest son of the Xiao family's never-before-seen fiancée. She thought she was perfect, but Xiao Hengzhi saw through her trick at the first sight - but he refused to expose it, and went along with the flow to enter into a "contract marriage" with her, each getting what he wanted.
She wants the college title deed, and he wants a shield.
Pei Yanchi thought he had caught a big fish, but he didn't know that she was the fish that took the bait. And Xiao Hengzhi, the cold-faced and taciturn son of a warlord, hid a bigger lie than her: he was not from the Xiao family at all. His real name is Lu, and he is the orphan of the Lu family whose family was exterminated by Xiao Henian fifteen years ago. Carrying the skin of the young master of the Xiao family, he worked step by step, lurking in enemy camps, just to collect evidence of crime and recover the blood debts of the loyal family members.
Two people wearing masks fell in love in lies, broke up in truth, and reunited in troubled times.
When all pretenses are torn apart, when the blood feud between two generations is spread out in the sun - can he still let go of his hatred, and can she still forgive the deception?
The sincerity in this world is never before the flowers and under the moon, but after Qianfan has passed away, I still choose to stay by your side.