Shinwa Densetsu no Eiyuu no Isekaitan - Volume 10, Chapter 1 – Wriggling Darkness, Part 3

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

R18 ( No One 17 and Under Admitted )On one night, a boy named Ezra is abandoned on road by his father. Aeri, a kind-hearted college student, takes him in and raises him as her own. As years pass, Ezra grows more manly with time and is now deeply in love with the woman he calls “Mom.”To support Aeri, Ezra takes a job at the most famous brothel in town—a vibrant and lively establishment where beauty, desire, and drama intertwine. Working as a host and a male escort, he finds himself entangled in heated encounters, passionate affairs, and thrilling action as he navigates the challenges of the trade without letting Aeri ever knowing about his secret work.Ezra’s journey is filled with unexpected twists, romance, and adventure.

“Can’t I properly read stallion novels anymore!”

Xia Luobing, a famously violent sheriff, received information regarding illegal prostitution at a local hotel. She goes to the wrong room, and instead of finding prostitution, she finds a young couple talking over a bottle of wine. What she doesn’t know is that the woman has drugged the wine with a potent aphrodisiac to seduce the man.