SSPD-171 — Original Story By Oniroku Dan "Lady Yugao"

Kizaki, who was in charge of an article about a conversation between Yumeji and Kazue, the head of the flower arrangement school, tricks Yuriko and takes her virginity. Yumeji, who loves her sister, goes to protest, but Kizaki has already conspired with Kazue, who is plotting to take over the Shimabara school. The sisters are held captive. Yumeji is noble and resolves to endure the punishment with determination, never to give in. And so begins the days of the sisters' confinement and training...