A woman has been arrested for allegedly running brothels for the elderly, with female staff in their 70s, according to police and media reports.
Risako Yokota, 53, was arrested last week in Tokyo, a police spokesman said.
NTV said 10 women aged in their 40s to 70s were working in one of Yokota’s brothels, whose main clientele were men and women drawing a pension.
Yokota reportedly made some ¥50 million over two years, the broadcaster said.
More than 20 percent of the population is aged 65 or over, one of the world’s highest proportions of elderly people.
Dutch twins Louise and Martine Fokkens made headlines around the world last year when they were revealed as Amsterdam’s oldest working twin prostitutes, aged 70.