Planning a 3-night, 4-day trip using the Sanyo Sanin Area Kobe Airport round trip~!

This time, the Japan trip is a 3-night, 4-day schedule to Kobe. I have used Kobe Airport for domestic flights before, but this is my first time using it for international flights. On day 1, I stay in Hiroshima; day 2, Izumo; and day 3, Osaka. I will use the 7-day Sanyo Sanin Pass. For domestic flights in Japan, I will take one-way flights from Izumo Airport to Oki Airport and from Oki Airport to Itami Airport, and there is a cruise schedule on Oki Island. I will participate in afternoon tea only 4 times. I will visit the Osaka Expo during the second nighttime opening following the opening week in April. I will also visit the Osaka Ando exhibition scheduled from March to July. I will collect manhole cards in Hiroshima, Matsue, Yasugi, Yonago, Osaka, and other places. The Pokémon Manhole Tour will visit Shimane Prefecture for the 37th time. This trip was originally booked for 2 nights and 3 days in Yonago, but after canceling, I changed it to 3 nights and 4 days in Kobe, making the itinerary much wider. However, I am reducing expenses. So, I will try to save on alcohol and meals by making the most of free hotel services. Since the 7-day unlimited pass allows me to go to Tsuruga and Fukuoka, I could go, but since the train travel time is wasted, I think I will only use it just enough to break even. Also, on day 3, with the island schedule and two domestic flights, I planned the itinerary so that I won’t need to take JR trains, so I will actually use it for about 3 days. Traveling from June to September involves typhoon issues. I have been to Japan about 60 times during this period and have frequently experienced cancellations and delays, so I need to make quick decisions and choose Plan B or C for the trip. Anyway, the Japan trips continue. Thank you.