Purchased from the Saint Michael official online shop (Deep Inside). Retail price: 19,800 yen. As you can see from the tag, this is guaranteed authentic, so please rest assured. Used for a total of about 10 hours after purchase. I didn't use it much because it was a little too deep for my liking, as I prefer shallow caps. Please refrain from purchasing if you are sensitive to used items. Only those who can agree to no returns, refunds, or cancellations, please.