Female teacher Akiko was assigned to the Special Advanced S Class. Although the students were all elite, they had been completely brainwashed by the education instructor 'Old God.' Learning about the existence of a rape video that forced her predecessor into early retirement, she confronted the students out of a sense of justice and ended up suffering the same fate... Bound by the slave's proof, the 'red collar,' she was raped repeatedly and had her genitals meticulously trained... ultimately falling to become an all-purpose sex processing pet who enjoys any penis.
