The supporting character's harem is very normal - Chapter 486: Am I a Villain Boss?

After three years of hidden marriage, he handed her the divorce papers because his first love had returned and he wanted to give that woman legitimacy to their relationship.She endured the sadness in her heart and signed.On the day he registered his marriage with his white moonlight, she had a car accident, and lost the twins in her womb.From then on, she changed all her contact information and completely left his world.Later it was heard that he left his newlywed wife and searched for her all over the world.On the day they reunited, he blocked her path and begged, “Sweetie, give me a chance, please.”

A con-man and policewoman that are legends of their respective professions suddenly die, then are reincarnated and return to the Tang Dynasty of ancient China as little kids.

Accepting their second chance and forced restart, they choose to use the modern knowledge and specific talents that they have in their previous lives in order to live comfortably in this new life.

- Description from Novelupdates

“For those who dare call themselves gods, I, Wen Ran, will crush their legacy beneath my feet. Even dogs are more honorable than those filthy bastards!”A feared Godslayer, who, due to betrayal, perished under the might of the heavens, having his world destroyed. Saved by a mysterious system, Wen Ran was granted a second chance at life but reincarnated in the body of a lowly slave. Hunted by the gods who sought his head, Wen Ran vowed to reclaim his title by showing heaven his vengeance as a 'God Slayer.'

Earth has been visited by the Embryeniel records, so the world and its habitants are pushed towards the path of evolution.Strange monsters only made up by imagination appeared everywhere and the world changed into a situation of either survival or death.Jon is a normal student in Palflic university, all he thought about was finishing his school safely and is faced with possibility of been abandoned by his parents, however little did he know about himself and what the world had in-store for him.Other worlds and universes, clans and sects, people and monsters stand in his way, will he prevail or succumb to the desires of others.