Incubus' Blood Harem - Chapter 16 Clean The Mess

Sequel of Allison, taking place about 17 years after the original series.

A data loving young man from Earth has an accident which transports him to a dark land filled with terrifying creatures and magical powers. Fortunately for him, he has a Biological Assistance Chip to ease his path. However, things in this bizarre and strange world are not always as they seem, and, though it is a tremendous asset, the chip doesn’t always work as expected. With all of the crazy creatures and magical mayhem around him, one can only wonder what the future holds for this young man…

- Description from novelupdates

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!

From the outcast of the imperial family to the emperor, Wei Chongrong’s path to the throne took thirty years.

In his previous life, everyone thought that he shouldn’t exist.

Only his youngest uncle was good to him, so he went through fire and water for him.

But what he ended up waiting for was the poisoned wine poured for him by the youngest uncle’s own hands.

Starting over, Wei Chongrong, who is familiar with the future, finds that the road ahead is still bumpy.

The battle that is bound to be lost is about to happen, and the scourge of witchcraft is close at hand.

What can he do to save the Eastern Palace and the imperial family, and to save Jun Hua, to whom he is indebted for a lifetime?

- Description from Novelupdates