MTL - HP Dear Miss Freak - Chapter 51 Forty-six, Möbius ring and

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

Eren Idril died as an old, decrepit, and piss-poor adventurer by the maws of a D-Rank monster. He had a lot of unfulfilled dreams and desires that couldn't see the light of the day after the light in his own eyes died down.

But fortunately for him and unfortunately for the world, that wasn't his end. Eren was somehow dived back in time when he was a mere teen, attending Lionheart Academy for adventurers.

When life gives him a second chance, Eren decides to exploit it to its fullest. Experience his vile deeds as he partakes in them without feeling the slightest bit of hesitation.

On the wedding day, her fiancé and his lover had a love affair and eloped. Her eyes were dim, she seized the man in front of the Civil Affairs Bureau.”To sum it up, your bride is not here, my groom ran off, wouldn’t it be better if we… fight together?”. Before marriage, she said, “Even on the bed, between me and you, there will not be anything!” After the marriage, he said, “Do not try, how do you know?”

Moulded from rot and souls, Loimos is born as an undead, as a skeleton. An undead linked to the weakest category of its kind, yet, he has something no other of the dead have. He is pure. Follow the journey of Loimos as he fulfils his duty and hunts down the living with extreme prejudice and faces off with the hypocrisy of those who live in death. In a world thriving with life, magic and heroes, he stands as the solution and its end.