This is the place where the locals go! We waited 40 minutes for a table, but it was worth every minute. We ordered a mountain sized green tea shaved ice with mochi, ice cream, and red beans and we also ordered a towering green tea parfait with dango, jelly, ice cream, red beans, mochi, and whipped cream. It came with a side of extra green tea powder to sprinkle on top. Heaven! There was also lots of free hojicha tea to go with it.
This shop is on the same road as the bridge to byodoin hoodo, but the opposite direction. There were signs in Japanese pointing the way, but it would be worth it to ask for directions in the train station. Enjoy!