Dominion's End - Volume 6, Chapter 7: This Time, Seize Control! Part One

Xia Yuqing is a shut-in+fujoshi from the 21st century. After an accident, she transmigrates into the body of a young princess forced into a political marriage to another country.

Ling Xiao was a powerful martial expert who fell in battle and was unexpectedly transmigrated into another world. He began life anew in the body of a boy with the same name, a fallen genius of the Ling Family whose cultivation had been crippled in a surprise attack, and son to a father who had also suspiciously been crippled under similar circumstances. Armed with knowledge from his previous life, Ling Xiao aim to restore his strength and establish his place at the top of this new world

- Description from Novelupdates

Chosen by the System, Jing Ling, each time she was completing a task would harvest a bunch of scum males.

The accumulated grievance caused her to have an accident while performing the task. Reborn in a parallel time and space to a seventeen year old body, although the gender has changed from female to male, the various attributes and skills that were redeemed from the system were still there.

Looking in the mirror at a face that could cause the downfall of a country and its people, Jing Ling’s infuriatingly arrogant smile emerged.

—

Don’t be afraid, this time I don’t want you. Change your girlfriend 🙂

- Description from Novelupdates

When Li Xianyu was 20 years old, he received his father’s inheritance, an 18-year-old great-grandmother who was incredibly beautiful.

Li Xianyu: “Great-Grandma, why are you so young?”

Great-Grandma: “That’s because I died when I was 18 years old.”