MTL - Urban Demon Slayer - Chapter 29 Youkai, desperate

In an era when the power of Fire Magic was considered to have reached its limit, one girl began researching nuclear fusion.

The world had started doomsday, and I struggled for a year, before I died under an enchanted beast’s claw. Heaven has given me another chance, back a day before the end happen. Will I be able to change my fate, and that of my loved ones? Now, I will start my journey on becoming the strongest on the planet that the Gods have changed into a game world.

- Description from Novelupdates

At the age of eleven, the youth Ye Xuan's soul traveled through time to the distant Mythical Era, becoming an Undying monster emerging from the Emperor's Burial Ground, influencing one era after another. Yet behind Ye Xuan, an invisible force manipulated everything. Struggling to take control of his fate, Ye Xuan exhausted all means, but just as he was on the brink of success, he was betrayed by his disciple and wife, causing his soul to slumber for ninety thousand years.When Ye Xuan awoke, he found himself back in his own body and had become the son-in-law of the Emperor Immortal Sect, treated by others as a fool. The story begins from here.Eternal Emperor Soul, returned overnight.From then on, an emperor rose as a son-in-law, ushering in an invincible myth that dominated through the ages!Simplified version: The foolish son-in-law, soul returned, rose in one morning, invincible through all ages.Show-off version: “I am invincible; do as you please.” — Ye Xuan.Meme version: That year, my hands in my pockets, I knew no rivals.