Hentai anime "Muramata-san no Himitsu" is based on the manga of the same name by Igumox. The release is scheduled for July 2020. The story is set in a typical Tokyo office company. ""Muramasa-San is a great mentor. Every time my boss tells me off, she supports me with her sweet smile. It is very easy and fun to work with. However, I keep asking myself, " why does she always cover her mouth when she laughs?"..