MTL - Heavenly Calamity - v6 Chapter 86 Reward

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

The free-spirited and brutally honest Ye Zhen Zhen was unwillingly chosen as Empress to the playboy Emperor Ji Wu Jiu. Their very first wedding night, she kicked the Emperor down from their bed and he sought out his concubine instead. This completely disastrous start was only the beginning of their eventful life together.

Kenichi Yamada was a 35-year-old salaryman. As a hardcore game enthusiast, he was saddened by the modern trend towards casual games.

So, when a site claimed to be “for people who like to do things the hard way,” he just couldn’t resist. Thus, he was reincarnated into another world as Allen, playing on Hell Mode.

This is fantasy light novel about Allen’s journey as a summoner.

Reincarnated as a serf, he starts from nothing.

His journey begins with absolutely no knowledge of the world around him, just like those games he played 10, 20 years ago.