Lin Siyu, an ordinary normal college student, was involved in the intrigues of wealthy families because of his resemblance to Lu Qingning, the ex-girlfriend of boss Shen Yichen. During her graduation season, she hid her illness while pregnant and fled, but was forced to return three years later as a mother of three. Shen Yichen used the child as a bargaining chip to put her under house arrest and launched a "forced and affectionate" prison pursuit of his wife.
Lu Qingning's sudden return revealed a shocking secret - Shen Yichen's body contained the Lu family's modified genes, and Lin Siyu was actually the key to launching the plan. The Jiang family is willing to kill each other for the "potion of immortality". The twins' special blood types trigger an international fight, and Nian'an's true identity is the missing heir of the Lu family.
In the tug-of-war between escape and imprisonment, Lin Siyu discovered that there was a ten-year conspiracy hidden behind Shen Yichen's affection, and that he was actually the ultimate antidote to the three-generation bloodline plan. When the Jiang family's underground laboratory was exposed and the United Nations intervened, Shen Yichen was willing to make the whole world an enemy to protect her.
In the end, at the wedding under the ginkgo tree, Shen Yichen broke all the agreements and made a belated sincere promise with a blood-stained ginkgo leaf ring: "There is no agreement this time, only I love you." Lin Siyu used the USB flash drive left by Lu Qingning to make the Jiang family's crimes public and win a free future for the three children.
