If you’ve been Japan for more than 5 seconds and had any interaction with the opposite sex here, you’ll no doubt have already experienced some “Lost in translation” style mishaps from smashing against the language barrier and cultural differences.
Japanese culture is at times pretty much the exact reverse of western culture.
At the same time, like folks in most other developed countries, Japanese people have been inundated with media from America and are avid travelers.
As a guy looking to meet Japanese girls who are looking to meet foreign guys though, your best bets are what are called “International Parties” and “Language Exchanges”.
“International Parties” are parties organized specifically to bring foreigners and Japanese folk together and give everyone the opportunity to meet and interact in a safer environment than clubs or bars provide, and are much more relaxed events that are usually held on Friday or Saturday evenings, with some events earlier in the afternoon.