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.