Mated at First Sight - Chapter 2 - 1 First Encounter with the Past_

Wei Yuewu is the unloved daughter of the powerful Marquis Hua Yang. On her way back to the capital city to marry her fiancé, she becomes the target of a ruthless assassination led by her fiancé, Marquis Jing Yuan. With the help of the Prince of Yan State, she narrowly escapes from one disaster after another and returns to the capital. Determined to avenge her enemies and unravel the mystery surrounding her engagement with Marquis Jing Yuan as well as the death of her mother, Wei Yuewu makes a deal with the Prince of Yan State. However, just as she has triumphed over all her enemies and is about to reach the acme of her life, she deliberately destroys her own future and becomes an exile of her own…

- 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?

When natural disasters rage, extreme cold and storms spread infinitely...When global mutations occur, zombies flood like tides, and horrific anomalies appear...When the apocalypse arrives, massive devouring abysses with diameters of hundreds of kilometers begin to appear around the world...When people look up to the atmospheric clouds and see the slowly emerging giant corpses of evil gods...From that day on, people started to notice that the time of sunrise became later and later,until the sun no longer rose, and what awaited was an endless polar night.To survive, on that day, the doomsday broadcast announced to the world for the last time:Everyone, head east, escape the dawn!...Lin Xian awakens the “Mechanical Heart” ability, allowing him to devour machines to gain various mysterious skills, scan machines for blueprints to create new machinery, and even use his mind to synchronously drive various machines.Thus, he finds a 200-ton heavy gas locomotive, pulling specially modified storage, planting, production, medical, and living carriages, embarking on a 320,000-kilometer journey along the star orbit, charging eastward!

Jiang Yuan traveled to a fantasy world.

His father was a big boss in the county, and he originally thought that he was rich and honored in brocade clothes.

Unexpectedly, his father was robbed while walking the darts, and the whole army was wiped out.

Overnight, everyone stared at the Wanguan family property left by his father.

Fortunately, he has already awakened the luck panel, which can be used to upgrade his own luck talent by considering other people’s innate luck.

Strong body (white) → extraordinary physique (green) → dragon and tiger body (blue) →??? (gold)

Outstanding savvy (green) →? ? ? (gold)

 …

[Longevity without Borders (Purple)]: Increase your lifespan for ten thousand years and keep your youth forever!

[Ancient double pupils (gold)]: Born with double pupils, the human emperor’s vision is equivalent to the ancient human emperor alive, with peerless talent.

[Five-color divine light (gold)]: Innate supernatural powers, once sacrificed, within the five elements, there is nothing that cannot be brushed and nothing that cannot be broken!

[Never fall into reincarnation (red)]: It is a taboo by nature, never fall into reincarnation, and can always keep the true spirit unaware of reincarnation and rebirth.

The luck entries one by one constitute the peerless genius!

And he also found that he could continuously gain innate luck and accumulate upgrades.

Talent has become unrivaled in the past, and gradually embarked on the road of invincibility.

- Description from novelbuddy