HBAD-308 Akira: Soft SM Incest Torture – Married Woman Ridden by Her Stepmother’s Lover

After losing her real father, a daughter returns home from Tokyo with her stepmother. Though the stepmother appears kind at first, she's actually cold and indifferent. Driven by hidden desire, the stepfather obtains a submission device from a friend, forces it onto his stepdaughter, and begins tightening it, leaving her unable to resist. He then hands the device over to his friend, who also proceeds to violate her.