My hotel overlooked Shibuya Crossing, so I crossed out seeing it by wandering the area on the evening before my day off. The next morning, I wandered the Imperial Palace grounds with friends and then headed down the block to visit the National Museum of Modern Art. All of it was a feint to get me to a nearby subway line. My mission was to ride 30 minutes, to Meguro. I was venturing out in search of the Midori Traveler’s Factory.