The Mistress Is Reborn As The Fiancée - Chapter 5: An Important Ingredient

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

Jaxon Hawk pretty much lives inside, loving his own space, when BAM! He gets this crazy thing called the Sniper System just as the world goes totally bonkers with zombies. But these aren't your grandma's zombies, shuffling around and moaning. Nope, these guys are like Olympic athletes, running, jumping, climbing, basically doing everything to get you. And get this, they keep getting stronger and tougher each time they change! Every time you meet one, it's a fight for your life.The human race is on its last legs. The good thing is, everyone knows they have to work together or they're totally done for. This isn't a story about fighting other people, it's about not becoming zombie food. Regular folks don't have a shot, and even soldiers are sweating bullets. This is a hardcore survival story, where Jaxon has to use his new skills and think smart to keep himself, his family, and his new friends safe.It's a wild ride of thrills, trying to stay alive, and finding people he actually cares about. Oh, and there are some girls, too, making things even more interesting. It's all about big feelings, scary moments, and doing whatever it takes when every second could be your last.

Terrence suddenly found himself back in the past, just moments before countless monsters were about to eat him.He got a second chance in life, but there was one problem.Unlike his peers, who had overwhelming talent, he was just an ordinary soldier with below-average skills.However, there was one thing he could count on that didn’t require talent.He knew the future.And with that knowledge, he could secure his survival, amass wealth, and build the ultimate sanctuary before the first wave hit.“I will be the one to shape the new era.”

On a random day, at a random place… I died.And by the grace of gods, got reincarnated in a world that has put a label over my head of Otaku.'Rise of the Thunder Emperor. 'Same clichè dense hero and harem of beauties involved in an Academy setting.I would have accepted my fate if I had gotten in some mob's body but no…I had to be a villain who was destined to taste the awakened power of the protagonist, firsthand.I planned to manage my life through this whole mess and if possible get that milf teacher on the way too.But why the heck this hero is behaving like he knows what I am going to do?Why are these heroines not performing their roles and turning yandere for me but not the protagonist?And the milf I tried to trap is now flirting in the middle of the whole school?Why did things turn out so hectic?___________…A/N: - Give the story at least ten chapters before you guys judge.