Ore ga Onna ni Somaru Made The Motion Anime

The main character of the hentai, Chloe, catches a bad cold, and upon waking up, realizes he has turned into a girl. His memory hasn't changed, he just got a female body. The guy, i.e., the girl, despaired and explained the situation to the owner of the café where she worked before the transformation. The owner and some employees didn't believe Chloe's story and decided to verify from personal experience that he is now a girl...