Anime XXX - Sakuramiya Shimai No Netorare Kiroku Yurisis - 1

Sakuramiya Saya and Hinata are sisters who are also in a relationship. They became sisters following their parents' remarriage and then developed a friendship. Tachikawa of the photographic club discovered their relationship and attempted to blackmail them. He begins with Hinata, the younger sister. He records himself rupturing her hymen while he coerces her into having intercourse with him. Concerned for Hinata, Saya enters the clubroom to inquire about her, only to be lured in. They both end up being raped and sexually assaulted. And thus begin their days of being played by Tachikawa and raped on a daily basis. His demands gradually rise, and they are raped not just by Tachikawa, but by a large number of others...