I will be coming to Tokyo in June. After business meetings, I will be traveling to Hiroshima to ride the Shimanami Kaido. I don't want to lug a big suitcase with me. I want to travel light down to Hiroshima, but I don't know what to do with my suitcase. One option is to send it by Kuro Neko, but I didn't want to ship it from hotel to hotel. Are there any places to just store luggage for 4 or 5 days. The only storage options I've seen are only good for one day. Any ideas?