Too many shopping days planned, any suggestions on what to explore/visit instead?

My husband says that I have allocated too many days to shopping, which is probably correct.

Can I get your suggestions on what to leave out/visit instead?

Edit: this is my second trip to Japan (first trip we did 10 days Tokyo only)

21 days Japan trip

Osaka – 5 nights
Hiroshima – 3 nights
Kyoto – 5 nights
Fujisawa – 2 nights
Tokyo – 6 nights

Based on everyone’s comments, I’ve made a few changes to my itinerary: Here is the updated for now. May still need to swap some shopping places, but it feels like I’m now visiting Japan and not just shopping at major stores.

1. Sunday – Arrive at Osaka – Kansai International Airport. Check into hotel afternoon – Explore Nishishinsaibashi + America-mura.
2. Monday – Tenjinbashi-suji Shopping Street + Pokemon Center Osaka + Dotonbori
3. Tuesday – Osaka Castle (9am-1pm) + Nipponbashi Denden Town: Animate, Melonbooks, Gamers, Surugay, Mandarake (2-6pm)
4. Wednesday – Kobe San Center Plaza: Melonbooks/Lashinbang and lunch at Kobe beef Ramen Yazawa + Kobe Motomachi shopping Street kinkaku-ji + Meriken Park
5. Thursday – Osaka Universal Studios Japan express pass: Harry Potter World + Universal Wonderland + Minion Park
6. Friday – Check out 11am. Catch Shinkansen: Osaka to Hiroshima (1-3pm). Transfer to hotel/check in. Purchase tickets from Hiroshima to Miyajima via Hotel’s travel agent for next day.
7. Saturday – Hiroshima to Miyajima High Speed Ship: (8am depart, return 5pm)
8. Sunday – Explore Hiroshima. Visit Hiroshima Castle + Downtown Hiroshima
9. Monday – Check out 11am. Catch the Shinkansen: Hiroshima to Kyoto (1-3pm) + Transfer to hotel 4:30pm
10. Tuesday – Higashiyama rickshaw 2 hour tour (10-12pm) + explore Higashiyama and surrounds
11. Wednesday – Arashiyama bamboo forest sunrise (5:30-7am) + Breakfast (7-8pm) + Tenryu-li temple (8:30am-10am) + Nijō Castle/Ninomaru Goten Palace (3-5pm)
12. Thursday: Kiyomizu-dera street and temple + Kawaramachi OPA: Lvl 3 character goods/Lvl 7 Lolita/ Lvl 8 Book off Plus/ Lvl 9 Tower Records + SUINA Muromachi/Pokemon
13. Friday – Uji day trip: River Uji Walk + Byodoin Temple + visit tea house – Tsuen Tea + souvenirs/food on Byodo-In Omotesando Street + Uji Bridge / Statue of Murasaki Shikibu
14. Saturday – Checkout 10am. Catch Shinkansen: Kyoto to Tokyo (12-3pm) + transfer to Fujisawa.
15. Sunday – Explore Enoshima.
16. Monday – Check out 10am. Luggage storage. Explore Enoshima until 5pm.
17. Tuesday – Brunch at Tsukiji Outer Market (8:30-10:30am) + Ginza: Uniqlo Flagship store (11-1:30pm) + Mitsukoshi Ginza (2-6pm) + Ginza Six (6:30-8:30pm)
18. Wednesday – Shinjuku: Disney Flagship Store Tokyo (10am-12:30pm) + lunch at Takashimaya Times Square (1-5pm) + Marui Annex: Lolita/otomate (5:30-8pm) + dinner at Isomaru Suisan Shinjuku (8:30pm)
19. Thursday – Day trip to Kawagoe
20. Friday – Disney Sea
21. Saturday – Yokohama: Cup museum + Pokemon Center + Chinatown
22. Sunday – Early check out. Transfer Tokyo Haneda Airport. Morning flight Tokyo to Sydney.