Little Miss Period (2019)
Original title: 生理ちゃん
Little Miss Period is a 2019 Japanese-language comedy movie directed by Shunsuke Shinada, with a running time of 1h 15m. It stars Fumi Nikaido, Sairi Ito and Risaki Matsukaze.
Periods are depicted as pink, heart-shaped sentient beings that harass women on a monthly basis, delivering awful gut punches, but also offering a shoulder to cry on.