MTL - I, Luffy, Awaken the Sun God on the Top - Chapter 1

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.

Since childhood Gu Wuji has regularly encountered ghosts and was one day involved in an infinite world of terror, just– I treated you as an evil spirit, why do you want to hug my thigh?

- Description from Novelupdates