Tsubasa Matsuo is a librarian at the library. Just by hearing her name and occupation, it seems like she's an intelligent, graceful, high-flying woman. But what happens when you actually look at her? She wears clothes with a hole in her chest that reveals her cleavage, and her face gives off a moderately mature pheromone. As it seems, she currently has 15 sex friends, and enjoys sex with 3 men a day. On the contrary, she has spent the night with men of various nationalities, not just domestic ones, and it is said that the number of masturbators that have been inserted into her own mascots exceeds 300. In a good way, it burns in that gap. Mr. Tsubasa, who has a lot of experience, is ready to be inserted at any time. Bella is polite and knows all about where a man feels comfortable... There is exactly the best woman for a man. I wonder if other librarians are erotic like this... I think I'm going to have a bad delusion.