-For them, Ling ● is everyday-This is a dormitory-based girls' school with a compulsory subject called'Training'. The schoolgirl always wears a collar that is a'proof'. M-shaped restraint with a mouth shackle, rope toy blame, mass bukkake, vaginal cum shot ... Pure innocent girls who receive a wide variety of tombs as a matter of course. "What kind of person is my future master?"