There are young people working in the cleaning business, known as "penis cleaners." Modern society is plagued by many problems, with many young people going astray at a young age and engaging in dangerous activities. However, the young people working at the "penis cleaners" face themselves through their cleaning work. Every day, they face themselves as they diligently clean the dirt off customers' penises. It may not be a job that sees the light of day, but these young people work hard at their cleaning work, gently and carefully, with all Kokoro. "Penis cleaners" will travel to any location, anytime, anywhere, and will clean even if requested.