Cozy SM/Fetish/Kinbaku bar, set-up as a Happening Bar (membership system, single/couple pricing etc), but not geared at vanilla sex.
Holding weekly lessons/salons on rope and other BDSM practices (check schedule for details of the day’s theme).
Foreigner-friendly, but all lessons are in Japanese.
Place is a little hard to find, look for building entrance in picture and go to 4th floor:
