This article explores the history, current legal status, enforcement, impact on sex workers and customers, and public opinion of red light areas in Japan. Prostitution has been documented in Japan since ancient times and was initially practiced by courtesans for samurai warriors. It was eventually banned by the Meiji government in 1872 but still exists today in some parts of Japan as an underground market. Enforcement of laws prohibiting prostitution is strict throughout Japan with potential penalties including hefty fines or imprisonment if violated. Sex workers often face discrimination from employers and customers while customers looking for sexual services must be aware that engaging in any form of solicitation can result in serious consequences. Public opinion on red light areas is generally negative due to their association with activities deemed immoral by society at large.