Skull-face Bookseller Honda-san

Added value for me as I recently read the first volume of ‘one punch man'

And thanks to this I looked at the wiki for bandes dessinée

Another review that I saw expressed disappointment about the premise/mechanic of the skull face and the other non-traditional faces as only being means to grant anonymity. I also felt a kind of disappointment.
I think a bookstore populated with fantastical characters would be an interesting aspect of a story. I also think that a bookstore staffed with humans is interesting on its own. I understand the need to give people their right to privacy, but what is the point of the choice of having these true to life experiences obfuscated by an absurd appearance? I suppose it's whimsical. I feel that the style choice bogs down the actions of the story rather than adding to it.

Anyone please let me know if there are books about a bookstore, library, etc. staffed by extraordinary beings as part of a premise or setting.

This one is super funny. It is all stories about working in a bookstore and the types of people that come in. I have this in the teen section, but it probably would be better in adult as these are adult workers dealing with some adult type situations and characters.
It isn't bad, but I don't think I'm too grabbed into continuing it.