[Qayin]

Most of Wagashi is like Chinese snack. It can't last long. I think not more than 2 days (if it's not in vacuum packaging) before it become so hard like a rock! because it's base from flour or mochi.

And never try to put it in the fridge and then heat it in microwave oven, because it might become uneatable (may be some wagashi can be heated but I don't think I will heat up Taiyaki or Dorayaki, it will be dried up and very hard)