Yes, 31!! And they have MORE stores than that! I didn't count the full list, it was loooong though

it was like scrolling through the US store list but with green everywhere!
Yes, Japan preloved shopping is fun! I learnt about it a bit late, and wasn't as into luxe back then, but when I visited I found the most beautiful pair of LV peeptoe pumps for about 200AUD.. they were unworn.. from this store KOMEHYO. I think that was the store. Our Aussie exchange rate was much better then, though.
Have heard that Japan has very strict standards for preloved , so they are meant to be in great condition.