[Suteisi]

I believe that the way it works with Mu-mo with Ayu's tour goods is that they have them available until the end of the Tour. So once the tour is over, they will stop selling them, or stop selling until they are out of stock.

So if you want this year's tour goods/ayupans, you should get them before the end of the tour. Otherwise, you will have to use auction websites to get them~