Original work by Dan Oniroku, wife Yugao

Kizaki, who was in charge of an article about Yumeji and Kazue's former flower arrangement artists, tricks Yuriko into stealing her virginity. Yumeji, who loves her younger sister, goes to protest, but Kizaki has already been conspiring with Kazue, who is plotting to take over the Shimabara style. The captured sisters. A noble dream path decides to be resolutely criticized without giving in. And then the days of sister confinement and training begin...