RBD927 — New Slave Castle 7

Two years have already passed since Shoko (Sasakura) and her fellow teacher Tadashi started dating. Shoko has begun thinking seriously about marrying him, but Tadashi still refuses to propose, leaving her frustrated day after day. Then Tadashi receives an email from Aimi (Abe), a former adult student of his... Shoko knows she should not look, yet secretly checks his phone. Attached to the blackmail message is a photo of Tadashi touching the butt of Eri (Maeda), another adult student of his...