Contracts signed, flight booked

So the contracts are signed and received by my employer, I've booked my one way flight to Tokyo Narita and bought one suit (many more to be bought soon).

I'm beginning to think I should start trying to find friends in Tokyo. I only know one person in Japan and she does not live in Tokyo. I'm not too concerned about making friends but it would be nice to know there are some friendly faces in that massive city...