Enjo kosai is one of Japanese society’s most infamous phenomenon: schoolgirls dating older men for money.
In Portuguese-speaking Latin America (i.e., Brazil), a milder form of caste system existed, although it also provided for legal and social discrimination among individuals belonging to different races, since slavery for blacks existed until the late 19th century.
You will need to spend time, energy and money on design, web development, copywriting, web hosting, SEO, etc.
If you cannot demonstrate an ROI on your endeavors, especially after a couple of years, according to the IRS, it’s not a business, it’s a hobby.
Safer and cheaper, it also allows men to contact a greater number and wider range of girls.
All he has to do is put an ad (“40,000 yen for dinner and sex”) on the message board with his contact details, and he can choose the most alluring response that rolls in.