Bu Sha - Volume 1, Chapter 8 : Survival in the Wilderness

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

In the post-apocalyptic age, men were damned.

Roy’s life was nothing special. The only thing commendable was the last few moments when he saved a mother and her child from a drunk driver.
…
It’s really an egg! Damn it, what kind of monster have I become? Did I fall into Hell instead of making it to Heaven??
Join Roy as he ventures through various worlds with the Custom Made Demon King System—a system that allows Roy to draw anything he can imagine and create it through exchanging souls!

This is a story that follows the courtship between a stone from Hell and a god from Heaven that begins in the underworld and spans for three lifetimes in the mortal realm.