Last October, the trip of 8-day to Japan has already been planned. It was because a special return ticket of only HK$ 22 was purchased online. Really lucky!
Prepared a 6-day mobile data card (HK$ 99), got on the 9:00 am-flight, it was already around 2:00 pm when we arrived at the Narita Airport. Since most of the attractions of the first 2.5 days in Tokyo will be near subway stations, a package of “Skyliner + Tokyo Metro 3-day ticket” was bought at 3,500 yen.