From Dragon Ball: Different Dimension Infinite Cheats (Animes) - Chapter 141 YGGDRASIL

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

[WARNING!!! ADULT CONTENTS!!! R18+]Syril Sylvester was an orphan in a world of superhumans. Due to his parents untimely demise, he couldn't get a power book. He became a joke in the society, a victim of several taunts and bullies. But fate had other plans...A book from the trash fell into his hands one day, granting him not only the greatest superpower, but an absurd way to level—fuck his way to stardom.A weakling suddenly became a grandmaster (on battlefields and beds).--------------------------------------------------[Welcome, Syril.][Congratulations! You've successfully fused with the Sexy Mech System.][Fuck your way up!][Stats now available.][Click here to check Stats.]--------------------------------------------------MC is OP, but his journey starts small with quests from the system. The story is ACTION and LEMONS packed. So, yeah, expect some LEMONADES and get your popcorn, because this is one hell of a ride.

The Great Yan Empire exists in a world where respect can only be earned through strength. Within this Great Yan Empire, the four great clans have always stood above the rest. Among them, a particular incident in the Lin Clan resulted in the banishment of a certain individual who went on to start his own family, in hopes of one day being recognized again by the Lin Clan, and rejoining them...

Hailing from a banished family of the Great Lin Clan, when Lin Dong was very young, he watched, powerless, as his talented father was easily crushed and crippled by the overwhelming genius of the great Lin Clan, Lin Langtian.

With a despairing father, a heartbroken grandfather, and a suffering family, ever since that fateful day, Lin Dong has been driven by a deep purpose; to take revenge on the man who had taken everything and more from his family.

Armed with nothing but willpower and determination, join Lin Dong as he unknowingly discovers a destiny greater than he could ever hope to imagine when he stumbles upon a mysterious stone talisman...

An internet troll who wanted attention, the reader criticized his favorite web novel, saying: “The protagonist is dumb and the author is stupid.”

Author: “… Got it.”

Unfortunately for him, the author actually listened to his (troll) feedback. The formerly lighthearted tale of a cute harem master suddenly became super dark and edgy. The reader could only helplessly look on as the the protagonist was abused and betrayed, finally embarking on the road to becoming completely evil. Everything was a mess!

After that the reader transmigrated into a strange world. How come the person in front of him looks like the protagonist (evil undead version)? Just what is going on?!

Note: Du Zhe (读者 meaning Reader) and Du Ze (杜泽 the character’s name) sound almost the same

- Description from Novelupdates