START-381 Factory worker couple we are. For her 19th birthday, I bought a cake and had our first overnight date at home. When I took off her clothes, she turned out to be a slender sex monster… Kanna Amato

He seems to be in love with a plain girl colleague at the factory.One day, they confessed to me and started dating.We were so-called introverts, and were indoor couples who share games and manga.Today is her 19th birthday.We, who don’t like special events, decided to buy ingredients and cakes at the supermarket and celebrate at home.