sentences:  For example, in 1932 the company Heibonsha published an appendix to "Edogawa Ranpo Zenshū", entitled which was promptly banned from sale for "corruption of public morals".The boom of ero guro nansensu media incited Heibonsha and other large publishers such as Shinchosha to release large amounts of bannable content.There were no laws during this period regarding audio media and as a result, erotic music developed into a popular genre of the time.