Mika, a teacher at a famous private school, is kidnapped and imprisoned by the underground sex industry organization NEOBLACK and forced to endure despicable training. As a pact, she is forced to drink urine immediately and undergoes anal training in ecstasy to become an anal urinal. Then, Mika awakens and climaxes in a 3P with simultaneous insertion into her anus, pussy, and mouth! Recognized for her talent, Mika is taken to a urinal party where 50 members of the underground sex industry organization NEOBLACK gather to enjoy a large amount of urine drinking, urine bathing, bukkake, and cum swallowing...