Planning a trip to Japan in September and wanted a second opinion on whether or not my itinerary is too much or what can be improved. This will be my first time visiting Japan. I enjoy sightseeing, eating food and doing physical activities moreso than shopping. I don't plan on buying the JR pass as I won't be making full use of it.

I'm planning to visit Tokyo (staying in Shinjuku), Kyoto (staying in Higashiyama) and Osaka (staying near Namba Station).

Day 1 - Land in Tokyo around 12am

Shinjuku & Ikebukuro

Metropolitan Government Building

Gyoen Park

Piss Alley

Godzilla Head

Sunshine City complex

Day 2 - Odaiba & Ginza

Tsukiji Outer Market

Teamlab Planets

Gundam statue

Fuji Tv Building

Day 3 - Shibuya & Harajuku

Meiji Shrine

Taekshita Dori

Hedgehog Cafe

Pompompurin Cafe

Yoyogi Park

Cat Street

Hachiko Statue

Shibuya crossing

Mega Don Quijote

Shibuya Scramble Square

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Day 4

Harry Potter Studios

Day 5 - Mt Fuji

Lake Kawaguchiko

Mt Tenjo Ropeway

Oishi Park

Chureito Pagoda

Arakurayama Sengen Shrine

Day 6

Disney Sea

Day 7 - Asakusa & Akihabara

Nakamise Street

Senso-ji temple

Tokyo Skytree

Akihabara shops/claw machines

Manseibashi

Day 8 - Kyoto

Travel to Kyoto

Nishiki Market

Yasaka Pagoda

Kiyomizu temple

Higashiyama or Gion

Day 9 - Kyoto

Fushimi Inari Taisha

Nijo Castle

Aeon Mall

Day 10 - Kyoto

Monkey Park

Togetsukyo Bridge

Arashiyama Bamboo Grove

Tenryu temple

Golden Pavilion

Day 11 - Osaka

Osaka Castle, Nishinomaru Garden

Umeda Sky Building

Tenjinbashisuji Shotengai

Day 12 - Osaka

Universal Studios

Day 13 - Osaka

Shinsekai

Janjan Yokocho alley

Tsutenkaku Tower

Kuromon Ichiba Market

Dotonbori (night)

Shinsaibashi (shopping)

Day 14 - Free day in Osaka (recommendations?)

Maybe go to Nara Park.

Day 15 - Kobe

Arima Ropeway

Mount Rokko

Botanical garden

Harbourland

Day 16 - Free day in Osaka (recommendations?)

Day 17 - Half day, flight at 3pm

Thanks in advance