Because I've Been Reincarnated as the Piggy Duke, This Time I Will Say I Like You - Chapter 55 - The Sign of A Hero

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

Three Days of Happiness is a novel by Sugaru Miaki, also known as Fafoo. It’s a rewritten version of the story originally posted to 2ch.

The premise of the story revolves around a shop where one can sell away the remaining years of their life, and the consequences of doing so.

“I Say A Little Prayer” is a short related story which was posted along with the novel’s release. It spoils some things about the main story, but nothing major.

The prettiest girl in the class, the campus belle queen, an attractive policewoman, a cunning reporter, a charming businesswoman, a mesmerizing commando, and a millionaire spendthrift, all shall lose themselves to passion.

Be it a Lolita, a virtuous woman, a regal queen, a mature racy woman, a cold-blooded goddess, or a sexy baby-faced doll, all beauties shall come to his embrace.

Young and inexperienced, equipped with the [Flower Pickup System], young schoolboy Su Ke, felt his life become more and more chaotic…

- Description from Novelupdates

In the beginning, I just wanted to solve life problems.

Then, I didn’t want to admit defeat, I didn’t want to just leave in such a daze.

Next, now that you’ve stood your ground, why not do it better.

Finally, as I have always insisted, when you decide to invest in something, you must do it to the best of your ability!

– One of the greatest actors of the 21st century, Sean Tang

- Description from novelbuddy