I'm Really Not an Evil God

At some point, after nightfall, the haze in the air was dispersed, followed by a misty mist that chilled the body and mind. Whenever night falls and the fog rolls in, weird whispers sound. In the Lucca district, at Gullman Street - 666, there is a hell detective agency, which came into being... Introduction, introduction, you are more difficult to write than a novel! It's probably a City + SCP + Cthulhu Unlimited fanfic, but I heard that SCP is not allowed to be written, so there will be no original SCP stories in the article. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.