Are there any places , bars or club to avoid when in Japan ?

Be careful in places like Roppongi and Kabukicho (Tokyo) after dark. I've read warnings from the US Embassy here: https://travel.state.gov/content/passports/en/country/japan.html

Watch yourself in the red light districts - especially in Tokyo's Kabukicho or Roppongi. If you get some guy (especially some Nigerian) talking to you to go where they want, DON'T. Stay away from them - they are crooks and liars.