Hidden Marriage: A Heaven-sent Billionaire Husband - Chapter 1235 - So Explosive   

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!

Qin Chuan arrived in a parallel world and got bound to a system.

Arthur, an avid gamer, accepts his friend’s dare to beat an infamous eroge game that no one has ever completed. The problem? The game is designed to trap players in endless smut scenes, with every decision leading to the same outcome: more smut scenes, world destruction and game over. After countless failed attempts and growing frustration, Arthur takes to the game’s community forum, venting his anger at the developers. To his shock, he receives a cryptic response from the developer challenging him to find a different ending. Moments later, Arthur is pulled into the game itself, awakening in the body of an unremarkable extra. Arthur finds himself embodying the very lifestyle he once despised—fooling around at every turn and getting swept up in the woman’s seductive temptations. Can Arthur resist the game’s temptations, uncover hidden paths, and finally break free? Or will he become yet another player lost to its endless scenes? or he will do both? Follow Arthur’s journey for a fresh story filled with humor, plot twists, and concepts you won’t find elsewhere.

Childhood sweethearts.
The most popular person in school is my childhood sweetheart.

- Description from Novelupdates