Suggestions for a 15 day itinerary

Itinerary check. Travelling with my wife and kid (8 year old). We also have 4 more adults joining us. We've been to Japan in 2016 before our kid and thanks to that experience, we've been entasked with putting up an itinerary for the period of 28th May – 11th June

Here's what we came up with

Day 1 : Land in Tokyo, acclimatise. Check-in and perhaps visit a grocery around at best to get a feel

Day 2 : Miraikan and TeamLab Planets. We take the Odaiba cruise in the morning, head to Miraikan first and stay till 2pm (covering the dome show). The head to TeamLabs planets and wrap up the day

Day 3 : Sumo show in Shinjuku, head to Shibuya Crossing, walk on Takeshita Dori and the surroundings. A few adults plan to go on a walk in kabukicho later in the day. Spend the day in and around that area (visit Meiji Jingu). Late evening : head to observatory

Day 4 : Tsukiji market in the morning, Asakusa Sensoji straight after that. Spend the first half of the day at Nakamise. Second half is unplanned : maybe walk around Sumida river and head to Tokyo Skytree. Would love to get some assistance in that.

Day 5 : Tokyo Disney Sea

Day 6 : Heading to Kyoto. At Kyoto, we go to Fushimi Inari and spend time there in the evening

Day 7 : Arashiyama Bamboo Forest, Rainbow bridge, etc in the first half. We head to Gion in the second, no clear mandate. Mostly to roam around on the streets, kimono/yukata experience

Day 8 : Kinkaku-Ginkakuji in the first half followed by Teamlabs Kyoto in the second

Day 9 : Head to Osaka via Nara (spend 2-3 hours there). Once we reach Osaka, we head to Umeda Sky building and walk around in Dotonbori late evening

Day 10 : Himeji Castle in the first half, Osaka Kaiyukan in the second. We are put up near Kuromon market so maybe shop after that.

Day 11 : Day journey to Hiroshima

Day 12 : Head from Osaka to Hakone (via Odawara) early morning. Spend the day in Hakone visiting Owakudani, Hakone Shrine, aboard the pirate ship. Spend the evening in an onsen in our hotel.

Day 13 : Head from Hakone to Tokyo. We visit Akihabara in the evening. Can add more to this day

Day 14 : Head to Ginza and shop. Can add more here too.

Day 15 : We head out of Tokyo

I'm sure there's more we can do. We're confused on what to do on Day 4 and Day 14 mostly. Also in Kyoto, we want to add in Kiyomizudera. We also want to visit a Samurai museum but not sure if it should be in Kyoto or Tokyo (or any other place). We could potentially do that on Day 14 in Tokyo. Even if we were to shop, my assumption is that we won't do it for more than 2-3 hours a day on the days marked for it.

Any suggestions are welcome wrt the itinerary. We are not the sorts who prefer a completely relaxed trip but neither are we ones who'd want to "check-list" things.

TIA !

by ghurram84