Sweet and Twisted Cage of Love

Iris is not allowed to leave the room, and she spends her days waiting for Ruki to return and getting bred and embraced. He is now unstable and violent, but he was kind when he lived like a family in an orphanage. Iris can't go out hoping for the day when he will return to her because she has no memory of "that day". She remembers her missing memory when she stopped being obedient...