Fake dating my enemy, The playboy billionaire - Chapter 10: Fifty shades of Grey

“If I don’t die… I swear I will act on all my evil thoughts..”

Not exactly everyone’s typical thought when they’re about to die. What will a cowardly young man do when reincarnated with the evil powers to redefine his destiny? Can the natural kindness of human nature triumph over evil? Will he become the cold-blooded demon king of legend, or will he forge his own path and rain down another kind of terror?

- Description from novelupdates

An Individual from Earth finds themselves in the Shinobi World, equipped with a Scientific System. From that moment, he delved into scientific research far ahead of its time.

[Warning: r18+/strong mature content]He is her salvation. She, his demise. Yet, he refuses to let her go…Mineah, the youngest Princess of Ebodia, was cursed at birth to remain untainted and bring misfortune to those around her. This prophecy looms over her like a dark cloud, growing bigger every year it does not come to pass.She exists in hushed rumors as a pitiful figure - fragile, meek, unwanted. Underneath that mask is a strong and feisty vixen worthy of being a queen. And this would-be queen has set her eyes on breaking her curse, even if that means tricking the most cunning vampire ever born.Nikolai, though reclusive and enigmatic, is revered by the Kingdom of Valcrez as a wise and powerful ruler. Unbeknownst to his loyal subjects, his image of perfection is a web of lies that if exposed can send their kingdom and everything they hold dear crumbling beneath their feet.When these two find their paths crossed in a marriage alliance, the game of Crown's Seduction begins. But just who is the hunter and who is the prey?********Excerpt:“Why are you stripping naked in front of me?” she questioned with a frown, doing little to hide the irritation in her voice. Her goal was to capture only his heart, not his whole body!“Am I not allowed to have a bath with my wife?” he remarked with a cold tone. “I purposely asked for a big tub to just make sure that the two of us will fit in it together.”She sighed, not tearing her gaze away from him as she regained her composure. Seeing him smirk she forced herself to get comfortable as he spoke.“That’s more like it. You said it yourself that no one forced you into marrying me. Instead, you offered and volunteered yourself willingly for it, so I expect that you’ll be confident enough to share a bath with your husband,” Nikolai confidently stated. “After all, we’ll do more than this soon enough.”Shameless…Preventing herself from rolling her eyes, she managed to give him a smile as she said, “Don’t blame me if you die on me then.”

“I lost everything again...?”Kain had to work hard to feed himself, in a small village on the edge of the forbidden lands. Unlike the others, he hated Keepers, the only people capable of fighting the creatures from the Astral Dimension. Everyone saw them as heroes, but Kain blamed them for the greatest tragedy of his life - the death of his parents.Ironically, the sacrifice of one Keeper allowed Kain to obtain a Rune Brand - the key to begin a trial, the outcome was either power or death.Facing another world, Kain discovered that his blood was cursed, and misfortune would always haunt him.But death would avoid Kain, wanting to keep such a valuable sacrifice for a god. Only failure would await him, but if it was possible death would pass by.Now, Kain must break his curse and take fate into his own hands for the first time in his life or remain a nameless offering.