Oimachi is just two minutes off the Yamanote (loop) Line from Shinagawa. Within moments we're snaking our way down the bustling, narrow backstreets that give this area the kind of character you just don't find in Tokyo's large-scale entertainment districts. It won't be long before we duck into our first tachinomi ("standing bar") for a cold beer and some tasty local, Japanese style pub grub. If beer's not your thing, there are other options. Also available, in case you are a little wary of some of the more "advanced" Japanese foods, are more classically Western palate-friendly options. Hunger staved for the moment, we embark on an educational walk, explaining (with visual aids aplenty) the vagaries of the Japanese nightlife scene. It's a lighthearted stroll, and we have fun with it; you needn't worry about it being raucous or off-color, and this tour is suitable for teens too, should you have them in tow. Then we eat some more.