MTL - Peerless Martial God - Chapter 2485 Terror

In a future timeline, the earth was visited by a species known as the Slarkovs.
Having lost their home planet and in search of a new one, earth was the next habitable planet for them.

Humans and Slarkovs made a deal with each other in return for the Slarkovs living on earth.
The Slarkovs traded their technology and knowledge for a new home.
They were similar to humans except for some of them who had slight differences so fitting into the society wasn't a problem.
Over the years Slarkovs and humans began to mate with one another and reproduce offsprings.
This in turn created a new species known as the mixed-blood.
Centuries later mixedbloods could tap into their bloodline and perform unimaginable feats.

Gustav born into an age where bloodline determines everything, struggles to fit with a useless bloodline.
His bloodline only grants him the ability to change his hair color, destroying his hopes and dreams for a great future.
His fate is turned around when an unexpected situation leads to him finding a system that grants him the power to unlock and upgrade bloodlines by completing quests but he's baffled by two quests with a five-year deadline. Success will grant him unimaginable rewards...
But only one thing awaits him if he fails... Death!

Follow Gustav on his interesting journey filled with unprecedented adventures, danger and death, maybe?

He rose from hardship, but was felled by betrayal. From then on, one man, one gun; treads the path between Evernight and Daybreak to became a legend. No matter what was destined to be his fate, he intends to become the ruler who dictates.

In a world where human and monsters relied on mystical fruits and their inner power to fight for dominance, a lost soul was thrown, given the powers from all the other worlds he’s known. But there was a catch; he had no control over what power he would get! With knowledge beyond that of most, he sails his path to the top of the one piece world!

- Description from Novelupdates

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