My Taboo Harem! - Chapter 478: Cassiopeia’s Virtue and Sin (r-18)

Kaito was summoned as a hero... and discarded as trash.No magic. No blessings. Just intelligence and a mysterious deck of cards that summon legendary villainesses—women so dangerous the gods themselves sealed them away.Now, with three (soon four) villain queens at his side, Kaito will build a kingdom from the ashes of his humiliation. Not through strength, but through strategy. Not through destiny, but through choice.But every summoned queen has her own agenda. Every ally hides secrets. And the kingdom that abandoned him? They're coming with armies.[WARNING: R-18 | Explicit content, graphic violence, and adult scenes]→ Anti-Hero MC (Strategic, Morally Gray, No Beta Behavior)→ Four Villain Queens (Competitive Harem, Slow Burn)→ Kingdom Building (Economic, Military, Political)→ Tactical Warfare (Army Battles, No Plot Armor)→ Ancient Technology + Magic Coexistence→ Character Development (MC & Queens Evolve)→ No NTR | No Dumb Decisions | No Forced Drama

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?

“Are you my knight?” The silver-haired youth looked at the blonde girl before him and asked, his cheeks flushed red. This was their first encounter when he was only ten years of age.

“Are you my bride?” He held her in his arms, embraced the girl who had accompanied him for ten years straight. He was sixteen years of age.

“Are you my king?” He knelt before the throne, smiling foolishly as he looked at the girl holding the sword victoriously. At this moment, he looked like the boy he was when they first met.

“I’m fine without having eyes for you. The entirety of Camelot is for your taking.” Smiling soft and gently, he gave his eyes to the girl who lost her eyes due to the curse of the red dragon. He doesn’t regret it, he thinks. He was twenty years of age.

“So… Arthur… Artoria Pendragon, are you willing… are you willing to spend the rest of your life with me?” His voice was soft and clear as he reached out to touch her hand.

This was their legend.

- Description from Novelupdates

[Warning: Adult Content 18+]Born crippled in a world ruled by cultivation, Lin Tian had no future—until the night his fiancée, the Ice Fairy Bai Xueya, refused to abandon him. Her loyalty awakened the forbidden Harem Link Cultivation System, granting Lin Tian the ability to copy 100% of a partner’s cultivation, talent, and breakthroughs through shared link and intimacy.One woman empowers him.Many make him unstoppable.As desire fuels his rise, rivals, sects, and ancient forces move against him. To protect the women who stand at his side, Lin Tian will defy fate, ascend through pleasure, and carve a new path toward the heavens themselves.A cripple no longer—A legend begins.