Fark (of course) linked up yet another example of just how manic the Japanese can get:

Imagine something like "Rocky 3" with sex.

The magazine provides a written account, accompanied by plenty of nude photos, of four women who enrolled in the three-week summer session --- veteran sex workers at pink salons, soaplands and other businesses. Their jobs were clearly starting to take a physical and mental toll on them, and they were worried that unless they took drastic remedial measures, they'd wind up slack, listless and wrinkled --- prematurely worn-out old bags.

At the demanding three-week camp, the four undergo no-nonsense discipline by their tough male drill instructor, Mr. Nonomura, who aims to whip them back into top shape.

Oh it gets even weirder from there. No, really!