Minako, who was bullied by her mother-in-law on a daily basis, hurt her mother-in-law in an accident. She panicked and ran out of her house. Minako changed her name to Marina Matsumoto and started living and working at her factory. Although she was a woman, she was mixed with men and managed to do hard work and lead a peaceful life. However, when a detective appears at the factory looking for Marina, her weakness is caught by her worker, Fuchigami. If she wants to stay in the factory, she is forced to give obscene butt hole training and she falls into a worker's libido processing slave.
