The God Virus - Volume 1 - 8 Ella 1

She was a famous assassin who had killed important figures, but ironically, she was killed by her own lover.And when she thought she was dead, it turned out she was occupying the soul of a young girl who was tricked by her own family.'Because I have been reborn, I will take revenge on the people who planned my murder and also teach a lesson to the people who underestimated the girl whose soul I reside in!'However, things become complicated when she has to marry a cold man, whom she spent the night with.

Yo, Hi! I’m Frank, I made a deal with a demon to pay me some money for receiving a guest for a few days every week.
I had no idea about what I have done.
On May 1st, Conan ‘the God of Death’ came to my house. I was forced to let him in and we get involved in a criminal case.
On May 8th, Bruce Wayne ‘Batman’ came to me. I was forced to follow him to fight crime.
On May 16th, Hannibal Lecter, The Silence of the Lambs, came to my home. I can only say that I really can’t stand my guests.

- Description from Novelupdates

Tragedy struck in form of his father's death, leaving their poor but happy family in shambles.A few years after, when their life was showed signs of coming back on track, another tragedy struck, Ryan lost his mother and younger sister to wildfire.Devastated, Ryan lost the will to live and ten years later, at the age of 28, died in a car accident.At the last moment, he was happy because he was finally reuniting with his family and reunite he did, but just not in the way he thought.He opened his eyes and realized he had traveled back 10 years in time, to the day when the fires broke out and took his mother and sister away.This was his chance to save them and change the course of his life. Goddess of luck also seemed to be smiling upon him because he got a system.Armed with ten years of memories and the fantastical system, he will rewrite his and his family's destiny.... but he did not expect that he would be playing a much bigger role.===Additional Tags: Smut | Illicit | Pervert | Okyadon | Milfs | Wonderful Story | Unveiling Mysteries | Complicated World | Secret Organisations | Superpower | More might be added if needed |

[A Douluo Dalu 2: Peerless Tang Sect Fanfiction]He awakened a unique martial soul and forged unfair contracts with soul beasts.Born in obscurity, he rose as a formidable overlord amidst the chaos.He suppressed countless prodigies of his era, his talent unparalleled.He is the true Beastmaster King, the ruler of all beasts.In the shadows, he gathered strength, advancing step by step, until he reigned supreme, unifying the continent.Whether human or soul beast, he would make all beings submit and become the sole sovereign of the land.Ending the turmoil, bringing order to the world—he would ascend to the highest throne, standing above all in an era of chaos.[Multiple love interests, no simping, mastery of strategy, seizing every advantage]