MTL - The Little Merman - Chapter 33

A broken man who ended his own life finds himself reincarnated into the game he used to play. However, instead of becoming the protagonist or a powerful antagonist, fate places him in the role of a minor villain—a mere stepping stone for the protagonist in the game's first arc.

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

When people die, where do they end up to?I don't know about anyone else, but when I died, I arrived at the strangest Heaven of all times. And I got a chance to reincarnate with all of my memories!Jackpot!If you look away from the fact I had to reincarnate as a damn monster which is the lowest of all the bottom feeders? And I had to represent one of the worst goddesses ever!?And to make things worse, my “birthplace” was a freaking Dungeon! And not your everyday Dungeon with level 1 slimes and goblins, but a freaking Dungeon-turned-world-destroying-facility!Still, you gotta work with what you have. So see me how I survive in this crazy new world!!...But I promise I won't be mad if the bosses get debuffed. No? Damn...

A kind girl falls in love with a vicious killer. Unhinged Yuri story set in Seoul.------“Like a prey waiting with a trap, I missed my predator.I missed her touch in the places I’ve never been touched.I wanted to hear her sing the songs that I’ve never heard.”------As the blood dripped off the knife she held firmly in her pale hand, I saw my reflection in the cold blade that had just taken the life of a man.I dreamed of magical moments like this every day.Something - someone to come and free me from the suffocating monotony of normalcy.She stormed into my life brandishing death, and in the moment of madness, my heart fluttered.Then she came to my place, uninvited. I treated her wounds and fed her. She slept on my couch like a cat. We started our lives together. Death bound us like the knot of tie I fixed for her as she left for work - to kill, kill, and to kill again.I spent countless nights sitting in darkness, on my couch hugging my knees, gripped with worry and excitement. I prayed for her safe return home, but I did not pray for the souls she’d be sending to hell.But she always returned, like a stray cat coming for food in the back alley behind a restaurant. I was the cook who put out the food for her, stroked her, and gave her shelter.A stray cat. A great feline predator. She was mine and mine alone.Together we laughed, alone I cried.Together we laughed, alone I cried.But I think we also loved.I think.------This is a dark and twisted psychological slice-of-life romantic comedy with a sprinkle of inspiration from the noir genre. If that doesn’t make sense, it’s because it doesn’t.