As other reviewers mention, these shoes run big.

How big?  I purchased the size 12.5 for my 6 year old daughter back in June. Since then, I have also purchased her soccer shoes (size 1) and another pair of running shoes (size 13). I tell you that to tell you this: her Tsukihoshis are still bigger than both! I bought the new running shoes because even after a few months of growing, these are still too sloppy for her to wear for athletics at school. In our experience, a size 12.5 Tsukihoshi is more like a Youth size 1. Or approximately 1.5 sizes larger than advertised.

She is looking forward to wearing this shoe more, next year.