One Piece: King of the World - Chapter 477: When the Time Comes, the World Moves as One, and Heroes Are Bound by Fate!

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?

Reborn into a fantasy world of magic and aura, Rowan is the second son of a ranch family living boringly in a backwater village, with no magic and no inheritance.To avoid rotting away in the countryside, he becomes a mercenary instead. Better to die fighting than waste away.After his first kill, the Black Dream awakens: a power that lets him plunder abilities from everything he defeats.But it's more than that. When he fights alongside others, their techniques become his: a master archer's deadly precision, a hunter's supernatural tracking, an assassin's shadow-step…Every ally becomes his arsenal.Ascension awaits! From the lowly dirt to the throne of the gods.

Hyperthymesia. Those with this condition can remember every detail of their lives from something as significant as the world’s turning point to something as small and as insignificant as a minor fleeting thought. They cannot forget and their thirst for knowledge allows them to be considered genius in some senses.

Legend has it that Ji Yushi was this kind of genius.

In addition, it was said that he was gay and very beautiful.

As soon as the news that he was going to support Tianqiong’s seventh squad broke out, it sent everyone buzzing.

Everyone knew that the captain of the seventh squad, Song Qinglan, was a hoodlum and deeply homophobic.

He not only relied on his super-powerful abilities to become the dark horse on the battlefield in less than two years, but he also hates it when those at the top forces a flower vase* into his squad.

Sure enough, Song Qinglan announced in front of everyone, “Useful? Us brothers are going out there working ourselves to the bone, we don’t need a little genius who can only speedread quantum waves!”

Later.

The squad was forced into a dire situation during their mission.

That beautiful little genius calmly continued, every gunfire hitting the mark, his fighting power peaking.

Song Qinglan begged in front of everyone, “Adviser Ji, stay.”

In the end, he added, “I’ll work myself to the bone for you.”

*****

Ji Yushi had a secret.

He would often be awake at night, suffering from memory overload and recurring nightmares.

There was only one thing that could let him fall asleep peacefully.

And that was Song Qinglan.

*Flower vase: Someone who only looks pretty but can’t amount to much