From Shin-Osaka to Tokyo station, we spent 3 hours in the bullet train. Then we rode the Tokyo Metro Hibiya Line (subway) to Roppongi Station and from there, we went out thru' the stairs of Exit 5 and strolled to our AirBnB apartment within 5 min. An easier route using elevator or escalator is located at Tokyo-Midtown (Exit 8), however it would take another 2 more min. to reach our apartment.
The apartment is off the main street of Roppongi Dori - very convenient. As my family rest in air-conditioned comfort of the apartment, I went to buy the 3-day Tokyo subway pass from BIC Camera shop as most travel agencies like JTB, HIS, Kinki, etc. are closed by 6pm. Important note is for all passports to be brought along in order to buy these passes which cost ¥1,500 each.
Back at the apartment, we gathered and then took subway to Oshiage station for dinner at an udon restaurant as we were all so hungry.