Skill-Eater: Prison World Saga - Chapter 1: Pivot

Within the Immortal Realm, there were nine thousand major realms, with three thousand at the top, three thousand in the middle, and three thousand at the bottom, along with countless minor realms.

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?

Kael was once a being so powerful even the gods feared him—until he was thrown into The Null, a realm of endless torment and eventually cast into inexistence. But he returns, reincarnated as a powerless beggar in a broken world ruled by monsters and corruption.With memory of godly blood on his hands, he is determined to reclaim his strength, survive the Nexus's deadly trials, and tear down the heavens themselves.But it's a matter of time before the gods and celestials know he’s returned. And this time, they will not make the same mistake twice.> ◇ Ravager (Rank E) Eliminated. 20 VRP Gained.> ◇ 0.00109% Memory Unlocked. Forgotten Technique: Blight Shield Relearned.> ◇ Ather'valis, The God-Killing Blade, has been acquired.