Young Master Damien's Pet - Chapter 730 Missing Person- Part 1

In his past life, Ethan Steele was an ordinary man living in a modern world—working a dead-end job, struggling through the monotony of daily life, and haunted by regrets of missed opportunities.At the age of 23, his life came to a sudden, unexpected end in a car accident. As his consciousness faded into darkness, he was sure it was over.But fate had other plans. In the divine realm, the God of Fate watched over the balance of life and death.Ethan's untimely death was a mistake, an anomaly that diverged from the preordained path of his destiny. It wasn't yet his time to die, and so, the god decided to give him another chance.“You were meant for greater things, Ethan Steele,” the god's voice boomed. “To correct this error, I will reincarnate you in another world—one filled with magic, swords, kingdoms, and adventure. You shall be reborn, but you will not remember your past until the appointed time. There is, however, a... complication.”By divine error, the god accidentally bestowed Ethan with the Harem God System without having any idea about it.This system is a powerful, reality-bending system that would allow him to charm and seduce influential women to build his harem, growing in strength and power with each conquest.“Your memories of Earth will return on your seventh birthday. I hope you enjoy your life here in this world”And with that, Ethan's soul was transported to a new world.

One day, Luo Jian woke up from his sleep and found himself in a locked chamber where the door and window were all sealed. A note with a few lines written on it was tacked to the wall: “Escape from this room within an hour, otherwise, you will die.”

There is a sequel called Reincarnation Night (轮回之夜) that takes place in the same universe but has different main characters

- Description from Novelupdates

When people awaken, their class gets ranked.F means nothing.SS means everything.Nobody talks about SSS ranks, because they aren’t real. Well, they weren’t real until he became one.Lucen Ivara was fine with staying average. Keep his head down, take low-tier jobs, eat something hot once in a while. That was the plan.Then his system came online.It didn’t follow the rules.There were no guides. It seemed limitless. There weren’t any safety rails he could cling into.Just a blank interface and a quiet message floating in front of him.[You are the first.]Now Lucen is crafting spells no one’s seen before, hiding a class that could get him killed, and trying to scrape by in a city where dungeon breaks, guild politics, and hidden power plays are part of daily life.He’s not looking to be a hero.But with power like this, staying invisible might be the hardest thing to do..

Ukei Kaito fought a desperate struggle in order to fulfill his role as a summoned hero. He defeated the Demon Lord and saved the very world, only to meet an end filled but with betrayal. The companions that he’d trusted throughout his journey betrayed him and killed him by sticking a blade through his chest.