Akio and his wife lived in an apartment building in northern Kanto. Their life was extremely happy except for Eimi's dissatisfaction with her neighbor. He seemed to be a gangster. He always talked loudly, making the whole apartment building noisy. He even smoked in public places, which made the vice president of the women's association like Eimi unbearable. She wanted Akio to go over and talk to him, but Akio was a bit scared so he didn't want to. Eimi had to go over herself to give him the general agreement of the whole apartment building for him to sign and follow. But Eimi didn't expect him to pin her down and rape her. He also took pictures and threatened to spread these pictures if she didn't listen. One day when Akio came home from work, he found his wife having a dildo inserted into her, he could only stand by and watch without daring to stop her. And then, when he was too weak to do anything, his wife was gradually changed by him and turned into a prostitute to earn money for him...