Endless Fall - Chapter 48 - Forced to Undergo A Checkup

After a seven-day slumber, Chen Yun discovers that his body is undergoing inexplicable metamorphoses that cannot be explained by science.Evolving flesh, unimaginable abilities, mystical secrets...All his previous pursuits now seem trivial, including money and career.The existence of a mythical realm in fantasy also doesn't seem too far off.

Dying after experiencing the cruel side of humanity, when Blake is transmigrated into a world of magic and flying dragons, he is fully focused on accomplishing his goals but then.[Ding! Welcome host to The Lust System.What is more fun than becoming more powerful as you have pleasure.]“That damned woman, what the hell is this, I'm here to conquer a realm, not play around” Blake thought, but he was immediately hit with another surprise,[Ding! Error, Failed to fully bond with host.....,, rebooting][Ding! welcome host to the Sinister System.]From a follower of Lilith to a target of the underworld, how is Blake going to explain to the rulers of hell that he now commands their sins.

The world is terrorized by the powerful Black Witch who has been sealed in the moon. Every ten years, the night of Hexennacht arrives and a chosen witch must battle the Black Witch in hopes of finally defeating her.

As the current decade’s Hexennacht approaches, a mysterious girl named Kagami Kagami arrives and meets Horinouchi Mitsuru, the daughter of the previous Hexennacht representative.

It takes place between Kyoukai Senjou no Horizon and the City Series, two other series by the author.

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