[Tokyo trips]
You now plan to be in Tokyo for two and a half days;
however, considering the listed places,
I suppose you may need one or two more days.
For Day 2:
This planned route is partly zigzag.
Takeshita Street, Meiji Jingu and itfs front approach Omotesando
are relatively close to each other,
but Nezu is a little away from Omotesando and Roppongi.
From Roppongi Hills you can go via Tokyo Tower to Shibuya.
Day 1 - Arrive in Tokyo in the evening At which airport will you arrive?
Haneda Airport [HND] is in Tokyofs urban area.
Narita Airport [NRT] is actually outside Tokyo.
Day 3 - Imperial palace Would you see the Palace itself?
Or maybe stroll in the East Gardens?
These two facilities can be closed on different days.
[Subway in Tokyo]
The subway network in and around Tokyo
is maintained by two operators.
There are 9 Tokyo Metro Lines and 4 Toei Subway lines.
Some lines lead to stations outside Tokyo.
http://www.tokyometro.jp/lang_en/station/rosen_en_1803.pdf[Shinjuku and Shibuya]
A wide area may be called as Shinjuku | Shibuya.
Shinjuku Station of JR
bestrides the boundary between Shinjuku City and Shibuya City,
so does Shinjuku Gyoen National Garden.
Shinjuku Stations (and subway Shinjuku-nishiguchi Station)
are in a huge complex,
which, to first-time visitors, may be complicated enough to be a labyrinth.
Shibuya City has been changing with renovation and construction works.
https://www.japan-guide.com/news/0040.htmlThe railway and shopping complex of Shibuya Stations
has two parts, on and under the ground.
The ground part leaves areas still under the works;
the underground part seems to be already fully renewed.
Subway Shibuya Station of Tokyo Metro
is divided into the two parts.
Ginza Line gates and platforms are above the ground.
Tokyo Metro Hanzomon Line
and Tokyu Den-en-toshi Line /
Tokyo Metro Fukutoshin Line
and Tokyu Toyoko Line
are linked on the 3rd / 5th basement of Shibuya Station.
http://www.tokyometro.jp/station/yardmap_img/_station_%E6%B8%8B%E8%B0%...
