Used Book Market

The Used Book Market is the home of Furuhonichi no Kamisama. He is often there posed as a child who pulls pranks on the market stall owners, but in reality, he is making sure that all the books in the market can properly circulate.

Events
During the final scenes if the movie Senpai, gives Kurokami no Otome a copy of Ratatatam and suggests visiting a used bookstore together, to which she accepts. The movie ends with the two meeting for coffee before going to the bookstore.