Apocalypse: Counterattack of a Cannon Fodder - Chapter 14

[Hottest Blood-Boiling Thriller]The Divine Level Expert from the apocalypse is reborn in the city. He intended to live a low-key, restrained life, but women broke off engagements with him, his family abandoned him, and everyone looked down on him…“I was low-key, but you forced me to be arrogant. Since it's come to this, then let Heaven be in awe, let the earth tremble, let the whole world go crazy because of me!” —Ye Tianchen.

In the past, the giants of the heavens and the gods were destroyed after the reincarnation of the world! Cruel curse, eternal hatred, Tan Yun is determined to never sink again! For the sake of loved ones and relatives, from now on, step on the corpse of the enemy step by step to surpass the peak! Defying the sky, killing all worlds, I am the only one!

- Description from novelbuddy

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?

A young Brave walked out of his village, gathered companions to his side, defeated the Great Demon King, became famous, then came back with beauties in hand! This was a legend that appears in the world of Seyrol every 200 years!

Our protagonist, however, isn’t a Brave. Even so, for over a thousand years his figure has loomed throughout its history.

Unwittingly, the name of the Red-robed Priest began to resound throughout the world. Red-robed Priest’s legend included extraordinary sword techniques and magic, erudite knowledge, and an almost prophetic ability to lead young Braves toward the proper path. People of the world think of him as a descendent of the ancient Yellow Race which led to his omnipotence. In essence, however, this was just the characteristics of the profession known as ‘Noble’.

- Description from Novelupdates