Genres:Manga / Josei / Shoujo / Comedy / Ecchi / Mature / Romance / Slice of life / Smut
The story centers on Saki Watase, a female office worker who is running out of money. She takes a part-time job as a product tester and has to review an XL-size condom. Keisuke Sudō, Saki's "demon boss" she dislikes, reveals that he is XL-size. A romance then develops between Saki and Keisuke.