After packing up, we started with a visit of the Google Tokyo office, and had lunch with a couple of cowrkers as well as a quick visit of the buildings.
From there, we went to see the Emperor's palace on a 75mn guided tour. In hindsight, that was a mistake, it was totally not worth it and we should have spent more time at Google. The imperial east gardens redeemed the visit somewhat. The former imperial palace in Kyoto was much nicer to visit IMO while the Tokyo one was a Japanese only tour and the location was a bit sterile, despite the guide who actually seemed to be a comedian but his humour in Japanese got lost a bit for us :)
From there, back to Akihabara to try a maid café as recommended. It was overpriced but lighthearted fun, and we spent the rest of the time in Ikebukuro at Amlux (Toyota showroom), Sunshine City, and walked through a huge department store, Seibu, before taking a train back to Shinjuku to get our luggage and a bus to Haneda airport.
while most of their food looked bad, the ice cream was quite good
if you say so, by the way for next time, it's sympatique :)
And that was the end of 15 crazy sightseeing days in Japan :)