His Majesty's Bride. - Chapter 125: No Mistake.

Ye Qiu transmigrated to a world of barren wastelands. He obtained the 10,000 Fold Return System.

You boiled two eggs, Culinary skills +1.

You chewed a mouthful of cereal, your jaw is strengthened.

You are riding a bicycle, driving ability +1

you gazed at the beauty, your mood is very pleasant, your kidney function has been strengthened, Appraisal ability +1.

You see elderly women dancing in the public square, you can’t help but want to swing with their rhythm, dance skills +1.

You glanced at the newspaper, your reading ability is strengthened, knowledge experience +1.

You sneezed, your disease resistance has improved.

You took cold medicine, toxin resistance is improved, medicine proficiency +1.

You observe nurse use injection, your basic medical skills are strengthened, medical skills +1.

…… I don’t know what’s going on, my strength is improving even if I’m drinking cold water. I don’t want to stop, but I’m so worried…

- Description from Novelupdates

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?

Jiang Chen had unexpectedly found himself thrust into a world of cultivation, stepping into the role of a core disciple within a famed sect. Fated to be the villain, his future loomed with calamity. He had plotted against the protagonist, crippling his dantian and leaving him a disgraced outcast teetering on the edge of expulsion. Were it not for an unexpected twist, Jiang Chen’s part might have ended as a mere footnote in the protagonist’s glorious tale. Fully aware of his precarious position, Jiang Chen’s lips curled into a sly grin. Alone, he mused: ’Is the protagonist powerful? Without a doubt.’ ’But will I tremble in fear? Absolutely not.’ ’Why? Because I have the Immortal Great Villain System!’ ’Wait... there’s more than one protagonist?’ ’Well, isn’t that just perfect?’ With a determined glint in his eyes, Jiang Chen declared to himself, ’As the ultimate Great Villain, I will defy the will of Heaven and seize my place at the summit!’