My Succubus System - Chapter 190:

30-year-old Jo Minjoon has always wanted to become a chef. He started his culinary career late in life, however, and is currently chopping onions at a restaurant. Regretting his life choices, he wishes he could go back to change it all and falls asleep. Meanwhile, someone out there is willing to give him another chance and send him back in time. How will he use the new powers he obtained from this mysterious being?

Born naturally defective but possessed by the spirit of a divine dragon. Inheriting the divine dragon’s will and power, growing scales and magical claws, imperial waters containing the breath of the dragon, travelling through clouds and summoning rain, an invincible physical body. In this world and era, countless men dream of slaying dragons. Li Mu Yang has always lived a hard life.

- Description from Novelupdates

After his village was destroyed by an E-Ranked demon horde, Augustus was titled the failed lord and mocked by other noble lords.Until, he died.Augustus regressed with the knowledge of the future and his SSS-Ranked skill “Talent Evolution,” fighting to change the D-Ranked village of Iona into an S-Ranked Empire.Need resources? His villager's 10x Resource Multiplier Talent was evolved into 100x! Enemies coming? His champion's Two-Hit Critical Attack was evolved into a One-Hit Critical Attack! Gods? He reared a couple in his courtyard.While other lords slept on their villagers’ talents, Augustus’s villagers transcended gods. While they mocked him for picking a dead village, he would transform it into an oasis.

Hiding in the Cold Palace and eventually becoming a Boss of Sorts. Li Mu was transported to a fantastical world and became a measly eunuch of the State of Xia. Despite having initially thought that his life would be a miserable one, he had unexpectedly acquired a check-in system.