Help 1 day tokyo

Day 1:
Japan Arrival 1pm,
Narita,
Kinshicho or Kameido (hotel)

Day 2:
Shibuya

Day 3:
Senso-Ji,
Kappabashi, Tokyo SkyTree

Day 4(Saturday):
???

Day 5(Sunday):
Akihabara

Day 6:
Meiji temple,
Harajuku,
Shinjuku

Day 7:
Odaiba,
Ginza

Day 8:
(Morning) ???,
Flight at 5pm in Narita

Any recommendation for where to spend the entire day in day 4?

I still have ikebukuro or yokohama, but feels like they have not enough things to do for 1 entire day

Also day 8 if there’s something close to Kameido would be great