miaa113 [MIAA-113] Until my beloved sister marries into the S family and falls into a masochist... Yui Hatano @ mail order (DVD)

miaa113 [MIAA-113] Until my beloved sister married into the S family and turned into a masochist... Yui Hatano @Mail Order (DVD) My sister married into a very wealthy and prestigious family. I put a lot of hardship on my older sister, who raised me as a substitute for my parents. That's why I wanted them to get married and be happy. But... We were so close that we kept in touch many times, but I haven't heard anything since the ceremony. Curious, I went to see my sister. There's no one in the mansion. When I sneaked into the room where the door was open, I found a DVD. It said "Record of impregnating a female slave"... I had a bad feeling...