My Elf System - Chapter 7 - 0. Third Mission Completed.

One day, Luo Jian woke up from his sleep and found himself in a locked chamber where the door and window were all sealed. A note with a few lines written on it was tacked to the wall: “Escape from this room within an hour, otherwise, you will die.”

There is a sequel called Reincarnation Night (轮回之夜) that takes place in the same universe but has different main characters

- Description from Novelupdates

Any MILF can be claimed as long as he writes their name in the book.That is the rule Renji abides by ever since stumbling upon the Milf Note; a mysterious notebook with magical powers that makes any woman—aged over thirty—burn with uncontrollable desire for him as long as he writes their name on its pages.From his seductive neighbors to his bossy professors, every name Renji writes unleashes a new, pulse-pounding conquest. Every MILF he claims unlocks parts of him he never imagined.But as he claims more MILFs, the big question is asked. Can he claim the demon MILF who created the notebook in the first place?

When Lu Huang woke up as Lidia—the villainess of a cringe-worthy romance novel—she was determined not to let the story play out like the dumpster fire it was written to be. Nope. Dying at the hands of the Alpha King after being falsely accused, publicly humiliated, and manipulated into madness? Yeah, that’s not on her to-do list.Armed with a sharp tongue that could flay egos, the street smarts of a broke college grad, and the petty audacity of someone with nothing left to lose, Lidia decides she was ripping up the script. Holier-than-thou saintesses? Screw ’em. Self-righteous alphas? They can eat dirt. If this world insists on casting her as the villain, she’s going to own it—on her terms.One chaotic scheme at a time, Lidia’s ready to rewrite her fate—and if she has to break a few rules (and maybe some noses) to do it, so be it. Villainesses don’t play nice, and Lidia is just getting started.

“What do you mean by I need to steal MILFs to become stronger!?” Waking up in an unfamiliar body of a Prince, Lucian stares in bewilderment as a transparent panel materializes before him, displaying a message that demands — “You need to steal MILFs to become stronger!” His mind races with confusion. What does that even mean?? As the absurdity of his new reality sinks in, he begins to accept the dark possibilities before him. In his previous life, as a master seducer, no beauty had ever escaped his demonic embrace. Now, with this new body, he savors the thrill of his newfound power. Their desires will become my playground, and their most sacred secrets will be mine to exploit. “You’re the Empress? I’ll grant you a divine body if you submit to me.” “Your lover is a once-in-a-thousand-years genius? So what? I’ll make you a prodigy that comes once in a million.” “Your husband is the sect leader of a powerful immortal sect? Irrelevant. I’ll elevate you to become an immortal goddess.” To claim the fate points of the ’Sons of Heaven,’ Lucian will seduce their cherished ones and drain their divine essence.