It's noon on a weekday in Tokyo's posh Daikanyama district in Shibuya Ward, and 52-year-old Buddhist monk Tenkai Miki makes a conspicuous arrival in front of Daikanyama station on his scooter.

Dressed in a black Buddhist uniform with shaven head, Miki, a monk of the Jodo Shinshu sect, looks as if he is on his way to a scripture recital. But not today.

As soon as he parks the scooter, Miki opens for business on the spot.