I Spread my Genes to Level Up in the Apocalypse - Chapter 5: Evil in human heart and Killing

Cultivators all have a soul beast, one that awakens at 13 years old.
However, Ye Chenfeng lacks one and is subsequently banished.
Ye Chenfeng obtains the favor of the heavens after years of humiliation.
With his gifts, he will walk his path to the strongest.

- Description from Novelupdates

(Warning: This novel has an r18 tag and contains mature content.)Adyr, once a notorious serial killer, met a brutal end and welcomed death as the final judgment for his sins.But he awoke in a parallel Earth, where the rich alter their genes and superhumans are the norm.Believing some unknown force had given him a second chance, Adyr buried the monster within and chose a quiet, normal life.For eighteen years, he lived in poverty with his family, suppressing his urges and forcing himself to be human.Until the day he entered a new VRMMORPG.A game that doesn’t just alter virtual stats but mutates real genes and pushes players toward evolution.And with every evolution, his bloodlust surfaced again, turning him back into the villain he once was.

Li Pu, who has the blood of a summoned beast, originally just wanted to lie down honestly, but found that his talent as a summoner seemed a bit unusual…

- Description from novelbuddy