While covering a discussion between flower-arranging masters Yumeji and Kazue, Kizaki deceives Yuriko and takes her virginity. Yumeji goes to confront him for the sake of her beloved younger sister, only to discover that Kizaki is already conspiring with Kazue to seize control of the Shimabara school. The sisters are captured, but the proud Yumeji resolves to endure the abuse without submitting. Thus begins their imprisonment and training.