I went trainspotting in Tokyo in March 2014.
I got off my train at Ueno Station, took the escalator down from the platform, headed for the main hall in search for an exit. I was on my way to meet some Japanese friends of mine.
I noticed the main hall was a lot more crowded than usual. There is always a lot of people in Tokyo, everywhere, all the time, but now there was even more people than usual in Ueno Station. There were even a few TV-crews there as well, and everybody was heading toward a specific platform.