It's 0530 in the morning and you're out walking your dog along the bank of river in a rural district northeast of Tokyo. Suddenly you hear the staccato footfall of a group of runners approaching. Emerging from the early morning mist are four females in their 20s clad in gym uniforms, and one male, looking for all the world like a drill sergeant putting new recruits through their paces.
Suddenly, to your amazement and astonishment, you encounter a scene reminiscent of Stanley Kubrick's "Full Metal Jacket," and the runners begin to sing, in cadence,
I don't know, but I've been told.
Eskimo ***** is mighty cold!
Okay, we made up the part about the drill song.