After 300,000 people are killed during Bai Qi's attack on Ying, shamaness Chu Li attempts to reverse time but is killed by Song Ziyuan. Both are sent back 49 days and must work together to prevent the tragedy while uncovering their connection from a past life.

Online celebrity Yi Han accidentally "blackmails" the manicurist girl Pei Youyou, whose mind is full of buying a house. The two quite different people have to sign a marriage contract under the butterfly effect of a long-planned sneak shot incident. In the meanwhile, they gradually attract each other from interfering with each other. Unexpectedly, their contract leaks out, and a long-planned conspiracy is slowly uncovered. Yi Han's career encounters an unprecedented crisis. What is uncovered at the same time is Yi Han's sincerity to Pei Youyou.

Wang Xiaoan and He Feng, once first loves, reunite years after a breakup due to a misunderstanding, both facing career challenges. Their reconnection sparks playful conflicts and a chance to rekindle their romance. As new relationships and complications unfold, their journey becomes one of second chances and self-discovery.

明星流量小生易涵（张雨剑饰）阴差阳错 “碰瓷儿" 了满脑子买房梦的美甲小妹裴呦呦（许晓诺饰）， 天差地别的两个人 却在一场策划已久的偷拍事件产生的蝴蝶效应下， 不得不订下一份婚姻契约， 两人从井水不犯河水到逐渐动心。这时他们的婚姻契约意外流出， 一场策划已久的 阴谋慢 慢浮出水面， 易涵的事业遭遇史无前例的危机。 同时浮出水面的， 还有易涵对裴呦呦的一颗真心。