This project is a highly valuable and worthwhile itinerary. I had originally read online that Kumamoto Castle might be closed for maintenance, but luckily, we were able to visit! The ginkgo and cherry trees were truly beautiful. The timing was just right; if you want to eat and shop, you need to move quickly and take fewer photos to have a chance to try everything. The tempura was incredibly delicious and a must-try; it was sold alongside the bear-shaped cakes, and both were tasty and adorable. Aso Volcano, however, was a shame... we couldn't visit due to a red alert, which was the only disappointment. Our tour guide mentioned that it's very rare for Aso Volcano to be on a green alert, and even they couldn't predict the timing. The scenery was truly beautiful. Oh, and definitely bring a windbreaker! We thought it wouldn't be cold, but we were absolutely freezing. You should also try the coffee, and if you want to experience buying a lucky bag in Japan, you can grab one. The lucky bags contain a selection of the store's key items, so if you don't want to pick out souvenirs, you can just buy a lucky bag; it has plenty of things to give as gifts! It's excellent value for money, though it did rain a few times and disrupted things. There's also a supermarket where you should definitely buy things if you can. The Aso Musume strawberries are very popular, but they are incredibly sweet and delicious, not sour at all, with a fragrant strawberry aroma. There are other varieties of strawberries too, and the prices are all fantastic!