A great comedy based on misunderstandings, with a backdrop of almost Lovecraftian cosmic horror mixed with urban fantasy and european ambiance.
The MC is a man who makes a deal with a demon (?) to own all the books in the world. He's transported to another world, where he opens up a bookstore and, from his pov, "scams" people by giving them vague life advice and telling them that there's a book that can help with their problems. From his pov, it's a normal life of a bookstore owner trying to pull in customers. Surprisingly, the kind being he made a deal with even told him he's already fulfilling his price.
From the pov of everyone else, in the midst of the tensions that have reached their breaking point between several supernatural factions in the city, an Indescribable class being has made itself known by associating with key players amongst the factions. This mysterious being has been manipulating factions for his own entertainment, and his customers have been given books that, if they can bear the cosmic horror brought by even gazing upon them, can give them immense power.
The setting is really interesting; it seems to be an urban fantasy mixed with the sort of vague european historical fantasy setting you usually see in asian stories. The urban fantasy part really had me confused the first couple of chapters hahaha, so I'll give a bit of an overview.
There are several factions at play: the Secret Instrument Tower, the Truth Society, The Spawn of the Magic Mirror, the Scarlet Cult, and the White Wolves and their splinter faction, to name a few.
There are regular humans, fantasy races such as elves and demonic beings, mutants changed by their close contact with a Lovecraftian fog, and "lycanthropes", those who infect themselves with the tainted blood of dream beasts from the dream realm (and eventually go insane when the blood overpowers their rational minds).
All this makes me really excited to see where it goes next.