RWBY: Moon Reflection - Chapter 110: Change

Emperor Ian Veroshion, the first noble mage, was betrayed and executed. Cursed to never be reborn, he awakens a century later as the illegitimate son of a disgraced ducal line, destined to be a hostage in a barbaric land. Stripped of his magic and his throne, he must navigate a world vastly different from the one he ruled, facing political machinations and a resurgent monster threat. But the embers of his past life still burn, and Ian will not surrender his legacy. He will reclaim his name, his magic, and perhaps, even his empire.

An underprivileged prodigy, a cruel, ruthless world, and an epic story of battle and conquest. A young man with an exceptional inheritance leaves the small, rural city from which he hails on a journey to find the girl of his dreams. He defeats countless prodigies, sweeps through all forces that dare to stand in his way, and progresses step by step toward the pinnacle of all the worlds!
“I’m not targeting any gods in particular. All I’m trying to say is that all gods are trash in my eyes!”

- Description from Novelupdates

Once time travelling, the talented young master became the idiot of the Gu family who was cut open and her son was taken away by others. Five years later, she came back with a cute baby. – She did it! Expensive jewelry that is popular in Beijing——she designed it!

The top restaurants all over the mainland – she opened it!

Even the most mysterious island of no return is hers!

Miss Gu took her son to eat and drink spicy food, slapped his face and watched the show, so happy!

But one day, a certain man suddenly blocked her door: “Woman, how dare you steal my prince’s son!”

Ha! Want to snatch her son? “Close the door and let the dogs go!”

- Description from novelbuddy

200 years after the world has ended, the laws of society have long been forgotten.