Reborn in the 1980s: I Married My Childless Uncle and Became Incredibly Fertile

[Alternate-history period setting + Sweet but feisty young woman x Older, fatherly director of a research institute]

Cheng Sui Sui is reborn on the day her adopted sister, the fake heiress, drugs her, leaving her at the mercy of a cripple. Her whole family then forces her to marry him.

She knocks the cripple unconscious, jumps out the window to escape, and spends a passionate night with a handsome man.

But who could have known she'd slept with Lu Chenzhou, the fake heiress's fiance's uncle, who cannot have children?

In her previous life, Lu Chenzhou was the youngest director of a scientific research institute. He devoted his life to his country and its people, but never had children.

And she has a fertility System bound to her.

She marries Lu Chenzhou and becomes the fake heiress's aunt by marriage.

After moving into the institute's residential compound, she has one pregnancy after another and is utterly spoiled by Lu Chenzhou, dazzling everyone in the compound...