MTL - Water Recovery System - Chapter 66

Various monsters came out from mysterious gates that appeared all over the world. Along with this incident, humans also gained power and were called hunters.

Radmilo Laiv is a hunter with the power to control time. He spent his life serving the world government and becoming a hero. However, he was killed because his power was considered a threat to the government.

It was a stroke of luck that Radmilo could return to the past because of his powers. In this life, he doesn’t want to be a hero anymore. Should he play the evil role and become a villain?

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

In a world where the boundaries of time blur and eternity is but a fleeting concept, the relentless pursuit of immortality has captivated countless souls.At the center of this eternal struggle is Liang, whose life approaches its final chapter. After six hundred years, he has reached the limits of his potential.Haunted by the limits of his mortality, Liang devises a daring plan to shatter the confines of his destiny and achieve true immortality.But is he genuinely shaping a new destiny, defying the predetermined course of his life? Or is he merely walking a path that fate has already laid out for him?“Which is more ambitious: the heart of a mortal or the will of heaven?”You would probably have to read to find out (^_^)

A fluffy, sweet modern GL story about a mature older women and a cute university student.