In other words, as well as being full of restaurants, bars and shops, it is first and foremost Tokyo's sex and casual sex district. Kabukichō is the red-light district and the heart of the pleasure-making industry and the "love hotels."
There is a great supermarket of delight, which is not as blatant as that of Amsterdam, but it still excels in countless neon signs, of dubious businesses engaged in prostitution and gambling, with the active involvement of the local mafia and quite a few pimps and crooks offering the local girls to the highest bidder.
Apart from prostitution and gambling, you can get to know the palaces of pachinko machines, where young people get together and gamble on their money against sophisticated game machines. There is also a movie theater with a giant Godzilla statue above it, with great movies.
By the way, the name of the square comes from the Kabuki theater, which was supposed to be built there, but as you probably figured out - was never established.
If you do enter places these bars and entertainment places, do not go after people who invite you from the streets. Some of them trap tourists.
In Kabukichō bars, make sure that there is no COVER CHARGE, which means that you commit to ordering drinks at a minimal price.