Sorcerer's Handbook - Chapter 42

A novel revolving around being transported to another world with an op system. The mc spends his day chasing skirts and doing missions to level up. A standard journey to the top with lots of girls from various animes and games with a twist of that gaming feel (hunting mobs, doing missions).

Lin Yu traveled to the world of royal beasts, obtained the collection book of God’s pet beasts, and contracted fallen angels at the beginning.

And obtained the talent of devouring, which can make pet beasts devour and evolve infinitely.

Everyone looked at the fallen angel with twelve wings and a height of 1,000 meters filled with darkness, dumbfounded.

“Can you tell us where all your beasts are contracted?”

“My friend gave it, and I picked it up.”

“Isn’t this figure too big?”

“Maybe she ate a little too much?” Lin Yu scratched his head embarrassedly.

- Description from novelbuddy

Perhaps it is the choice of fate. As a senior otaku, Qian Lingfeng got the “steel shell system”. However, when he swept the world with the system, became a local rich man, made all kinds of beautiful women, opened a harem, and realized the ultimate fantasy of thousands of otaku, he found that things seemed far from simple!
When the end comes, biochemical zombies suddenly come down, fierce beasts are in power, bloodthirsty zerg roam to kill the world, and human lives are comparable to dirt. Where will weak human beings go in this world? Is humanity going to be extinct? Or … can an otaku save the fate of the human race?

- Description from Novelupdates

Zhao Fan gets reincarnated as villain thus, journey starts....Tags: Milfs!!! — Cuckolding protagonists ( Netori, enjoying their mother and harem) — Harem — Cold Mc — Villain Mc— Cool article - Somehow yandere female leads.