Tokyo has one of the most vibrant nightlife in the world offering all kinds of entertainment. Being woman fighting so popular in Japan, it is no wonder the amount of show business one can find in the capital. One of the most common is the night club catfight like the three bouts in the video below. There is some resemblance with pro-wrestling matches: each fighter portrays a chosen character and there are plenty of professional holds and moves (bostom crabs are a staple). However, there is no ring and the audience is quite close to the combatants.
There is an entertaining English written blog - Tokyo Damage Report, with about a dozen first hand reports of female grappling in the nights of that fantastic city.