Jukujo yoga kyôshitsu: Kon'ya wa gin-gin! 2015

Directed by Daikei Shimizu

Natsuko's yoga class is filled with excitement, mainly with middle-aged and elderly students. However, Natsuko is worried when she learns that the building where the class is held has been taken over by the yakuza Samejima Kogyo. Meanwhile, Samejima is suffering from erectile dysfunction...