MTL - Dragon Emperor, Martial God - Chapter 15 Walking the back door is not my style

Su Bai unexpectedly finds himself traversing into a world where urban dramas collide, bound by a mysterious system.Upon arriving at Shuxiang Yaju, he happens upon Song Qian, who is awkwardly stuck in a doorway. Without hesitation, Su Bai comes to her rescue from behind, freeing her.From that moment on, their relationship takes an unexpected turn, and before they know it, the two inadvertently find themselves wandering into a tangled web.Just as they become ensnared in one another’s company, they are caught—by none other than Tong Wenjie from Chunfeng.Blushing furiously, Song Qian stammers, “Wenjie, let me explain…”Wenjie smirks, “Explain what? I want in too!”Pei Yin interjects coyly, “Su Bai, don’t you think you should be fair? If you’re tutoring Teacher Song, I’d like the same treatment…”Nuo Lan teases, “Do these stockings look good with my dress?”Gu Jia sobs, “You’re so capable… I can’t help it!”Jiang Nansun calls out, “Su Bai!”And there are more: Xu Hongdou, Zhuge Dali, Wan Yu, Jiang Lai, Qiao Jingjing…

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

He mocked the omegaverse. Now he’s living it—with a baby on the way.Souta Tachibana was just your average, overworked office drone—until his BL-obsessed coworker introduced him to a trashy omegaverse romance novel. Curious (and a little horrified), Souta read it for laughs. But then he died in an accident.Now, he wakes up in the body of Lucien d’Armoire, a minor noble in the empire of Aetheria. No plot relevance. No destined lovers. Just a quiet, boring life as a background beta.Until one morning, he throws up into a chamber pot… and his doctor says something unthinkable:“Baron d’Armoire, you’re pregnant.”Which is impossible.Because he's male.And straight!And because Betas can’t get pregnant.…Right?Except Lucien is no Beta. He’s a rare male Omega. Apparently, during one reckless, drunken night, Lucien slept with an Alpha. Now he's pregnant, confused, and definitely not ready to be a father. To make matters worse—he doesn’t even know who the father is.

...[Inside an underground basement]“You are going to die for nothing, hahahaha,” the old man's voice thundered through the room, sending chills down my spine.Step.With a swift and ruthless motion, he lunged forward, his sword slicing through the air and slashing my throat, crimson droplets staining the darkness.“We'll see,” I whispered defiantly, my final words escaping as a mere breath against the impending darkness.Slowly, inexorably, my consciousness slipped away, and I descended into a deep, unfathomable slumber.“Huh!?” My eyes fluttered open, and I found myself seated in a bustling tavern, the air thick with laughter and the clinking of glasses.In front of me stood a captivating lady, her beauty juxtaposed with an angry furrow upon her brow, threatening to shatter the harmony of the jovial scene.“Don't follow me around!” Her words pierced the air like shards of ice, the intensity of her emotions palpable as she cast a resentful glare in my direction, before swiftly departing from the tavern....Am I trapped within the confines of a game? The fragments of my shattered common sense scattered before me, leaving me to question the very fabric of my reality.