First time 1.5 bagger, 2 weeks in Japan

Hi everyone! As the title implies, I am planning to 1.5 bag my two-week trip to Japan in early October. I'm a chronic over packer so I normally would check a bag and not worry about it, but my friends and I are going to three different cities (Kyoto, Hiroshima, Tokyo) and I don't want to be the tourist with a huge bag on the train. Also, I've been lurking on the sub for a bit and have been inspired!

We are planning on doing laundry once or twice on the trip so I probably only need enough for about 5 outfits. We may do a light day hike at some point but will otherwise be engaging in typical sightseeing activities (e.g. museums, temples/shrines).

I'd like advice on:

• If there are any weather-appropriate swaps I should make
• I'm packing similar shirts/pants on purpose so I can easily mix and match items for outfits, but could I leave out a pair of pants/shorts or any of the tshirts?
• Right now I only have room for one flannel, which I plan on using for layering on my day trips. Should I bring a second one? If so, what can I eliminate to make room?
• Should I leave out the Crocs and just wear my Hokas on the plane?

Plane outfit:

• Cargo pants
• Plain black tshirt
• Crocs
• Compression socks
• Sweatshirt
• Baseball cap

Personal Item - Swissgear Getaway 18" Weekend Laptop Backpack:

• Hokas
• iPad
• Sony XM5 headphones
• Passport
• Wallet
• Stuffed animal
• Hand fan
• 2 portable chargers
• 2 small notebooks (for temple/shrine stamps and train stamps)
• Mini "emergency" kit (bandaids, chapstick, gum, painkillers, etc.)
• Sling bag for day trips

Carry On - Samsonite Blackstone 20" spinner:

• Toiletry bag
• Makeup bag
• Tech bag with chargers/adapters
• 2 padded bras
• 4 sports bras
• 7 pairs of socks
• 7 pairs of underwear
• PJs (shorts, tshirt, fuzzy socks - I run cold year round lol)
• 5 tank top undershirts
• 2 pairs of shorts
• 2 pairs of cargo pants
• 2 additional black tshirts
• 2 cropped tees
• 1 flannel for layering

Thanks in advance for any guidance y'all might have, and happy to answer questions of course!