I Am a Rune Engraver, Carrying a Knife Makes Perfect Sense - Chapter 4 - I, Xu Shen, Love Reasoning the Most

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?

I accidentally changed the whole world, the resurrection of the dead, genetic variation, recovery of the qi, mountain and seas reborn, land and seas expanded and evil spirits have started to appear.

Ghosts are now commonplace. Some people now have three heads and six arms. Some people have obtained martial arts techniques and ordinary people are now just cannon fodder.

Fortunately, I have acquired an ability which can make various items mutate.

books into martial arts or cultivation manuals,

fruits into precious treasures of heaven and earth or poison that you can only imagine and…

weapons, that can split the earth or gain sentience!

- Description from Novelupdates

Ethan finds himself mysteriously transported to another world, where the strong reign and the weak perish.Welcomed by a kind farmer who decides to help him upon seeing his poor condition, Ethan begins to hope for a new life.However, his dream is shattered when an acquaintance deceives him, leading to his sale at the slave market. Desperate and confused, Ethan wonders what he has done to deserve all this.“Which deity have I offended to deserve all this?”Just when he thinks all is lost, fate has another surprise in store for him, once again changing the course of his destiny.

Lin Xing has the ability to turn back time.Whenever he faces a life-threatening danger, he would return to the past.He falls to his death, and returns 5 seconds earlier.He is killed by a falling object, and returns 1 minute earlier.He is struck down by a dump truck, and returns 20 minutes earlier.Then one day... he finds himself having returned to one year ago.