JUY-819 Yui Hatano, who is being thoroughly played with by a plain and docile-looking married woman with a liberal arts background at a bookstore.

Yamada buys books he doesn't even read in order to get closer to Yui, a bookstore employee he admires. - However, when he decides to return to his parents' home due to work, he is finally separated from Yui... - She takes me to the back of the store and says, ``I have a book that you recommend.'' - While reading the erotic novel that was given to him there, before he knew it, his girlfriend whispered lewd words into his ear and started playing with his whole body. - Ever since that day, Yamada can't get Yui's dirty talk out of his head, so he heads back to the bookstore where she works...