His Contractual Mistress - Chapter 446 - The Agreement

...[Inside an underground basement]“You are going to die for nothing, hahahaha,” the old man's voice thundered through the room, sending chills down my spine.Step.With a swift and ruthless motion, he lunged forward, his sword slicing through the air and slashing my throat, crimson droplets staining the darkness.“We'll see,” I whispered defiantly, my final words escaping as a mere breath against the impending darkness.Slowly, inexorably, my consciousness slipped away, and I descended into a deep, unfathomable slumber.“Huh!?” My eyes fluttered open, and I found myself seated in a bustling tavern, the air thick with laughter and the clinking of glasses.In front of me stood a captivating lady, her beauty juxtaposed with an angry furrow upon her brow, threatening to shatter the harmony of the jovial scene.“Don't follow me around!” Her words pierced the air like shards of ice, the intensity of her emotions palpable as she cast a resentful glare in my direction, before swiftly departing from the tavern....Am I trapped within the confines of a game? The fragments of my shattered common sense scattered before me, leaving me to question the very fabric of my reality.

Reincarnated as a fox by mistake, Tang Li Xue got a system that can help her evolve and reach Deity hood as her compensation.

As a walk-on, he had been the mistress of his sugar daddy for three year. However, they only had met each other for a few times.
As a boss, his sugar daddy had tons of lovers.
The walk-on: The cake shop is the only thing I love in this world. Lovers? Never want one.
The boss: No problem. Nobody wants that.
Then, they fell in love with each other…
Shameless playboy x heartless rogue
1v1, this is not a decent love novel.

- Description from Novelupdates

Humanity lives under an unseen rule—the Ascension Cycle. A hidden system selects individuals at random, forcing them to complete tasks and gain different abilities as a reward. Anyone who fails a mission assigned by the system will instantly die on the spot.Ronan Vale wasn’t chosen at random.Killed on a mission gone wrong, he wakes up with a system unlike any other:[Evolution Path: Kill to Survive][Failure to Execute: Life Force Erosion Begins]Ronan has only one way to stay alive—which is to obey every mission assigned to him by the system. Unlike others, Ronan evolves after every task, each kill makes him stronger, sharper....but less human.As he fights to survive, he realizes his system is different. It evolves with him. It whispers to him. And it may not be just a tool—but a living thing.As war brews between Harbingers—those who embrace the system—and Eradicators, who seek to destroy it, Ronan is caught in the middle. But he has no time for their games.Because the real question isn’t how to survive.But what he’ll become in the process. A heartless monster bred only for destruction? he was about to find out.A:N; will there be romance? umm...NO!Harem? NeverKilling? YES!dark triller? YES!overpowered mc? hundred percent YES!