There's Something Wrong With This Account - Chapter 376 - : 376, [Major Breakthrough Before a Big Event]

Three years ago, the animals and plants on Earth underwent crazy and unexplainable changes that included transformations, reversions, and the addition of otherworldly species. And it was the start of a brand-new type of profession in the new generation of humanity – Monster Trainers, people who specialized in taming monsters.

“Doc, it’s like the game I made is becoming a reality.”“Isn’t that nice? People are under so much pressure at work these days, but you can get away from it all, play the game, and live the life of your dreams.”“But I’m a famous ghost story game designer, I’ve conceived one hundred and twenty-six mu*der cases, portrayed dozens of mu*derers with different personalities, and to find material I’ve watched ninety-five thriller movies, more than four hundred horror comics, and collected more than two thousand urban weird tales. Now they all seem to be true!”“So …… do I look familiar to you?”

Yo, Hi! I’m Frank, I made a deal with a demon to pay me some money for receiving a guest for a few days every week.
I had no idea about what I have done.
On May 1st, Conan ‘the God of Death’ came to my house. I was forced to let him in and we get involved in a criminal case.
On May 8th, Bruce Wayne ‘Batman’ came to me. I was forced to follow him to fight crime.
On May 16th, Hannibal Lecter, The Silence of the Lambs, came to my home. I can only say that I really can’t stand my guests.

- Description from Novelupdates

This is a story about Gong Lixin who was the young master of an ancient underground palace in the ancient times. He was raised by his master and forced to partake sexual relationships with numerous people to cultivate his Yin Body. His master who has a Yang Body was going to absorb him after he has reach a level to become stronger. MC refused and killed his master also dying at the same time. Then he transmigrated to the modern time and thinking he will enjoy peaceful life, the end of the world arrived.

Being someone with no special powers except for his martial arts, see how he use his martial arts to dominate the times and find his lovers.

- Description from Novelupdates