My Harem Life in Another World - Chapter 36: The Gateway to the Goddess Realms

Aidan was thrust into this word of death and magic against his will. He was weak, Frail and pathetic but his unyielding hardwork led him to the peak where he sits unrivaled, Now he tries to find other ways to cure his unending bordom.Netorase—Netorare—Overpowered—Harem—Elf’s—Giants—Incest—

It begins on the mountain.

With the glint of a knife, a flash of steel in the hands of a sworn brother. A betrayal.

Stabbed and pushed down the mountain, Zi Chen lied within the red-stained snow, left to die.

This is where it begins; he is given life by lightning,
baptized by thunder.

Those who had once betrayed him should all suffer in his cruel revenge.

- Description from Novelupdates

The story of a trash prince who was banished from the palace at the age of 15 and died at the age of 31. He repeats his life exactly where he was banished and is killed again at the age of 31. Ultimately, his total number of repeats reaches nine times. He has tried various things, from being a merchant and an S-rank adventurer to helping reform his kingdom.Ironically, he is always killed by the same imperial queen all nine times at the age of 31, either directly or indirectly. In his tenth life, he intends to go directly to the queen, who was still studying at the academy as an imperial princess, not to kill her, but rather to help her and prevent a tragedy that would ultimately make her the cruelest queen.But when he enters the academy, he discovers new things he never knew in his nine lives, completely throwing his plans into disarray. Furthermore, the queen, nicknamed the “Cold Queen,” holds more or less the same secret as himself. How will the trash prince fare in his tenth life with the Ice Queen who always kills him?

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?