The Mysteries Link | Lord Of Mysteries Aka Lord Of

There are plans for an anime adaptation, as well as a potential manhua (Chinese comic) adaptation.

The protagonist, Klein Moretti, is a former detective who was thought to have died in a tragic accident. He finds himself reborn into this new world, with memories of his past life still intact. Klein becomes a Beyonder, an individual with supernatural abilities, and joins the Nighthawks. lord of mysteries aka lord of the mysteries link

You're referring to the popular web novel "The Lord of the Mysteries" (also known as "Lord of Mysteries" or "Mystery Lord")! There are plans for an anime adaptation, as