Where can I buy these exact Yokohama Drops?

All I can find are different brand and different tin. A relative brought some back from a trip to Japan and my wife absolutely loves these. I would love to surprise her by getting more. I think I’ve narrowed it down to the Red Brick Warehouse shopping center in Yokohama but don’t know much more than that.

Using google translate + reverse image search on the back reveals:

Name: Candy Ingredients: Sugar (manufactured in Japan), starch syrup/acidulant, flavoring, coloring (gardenia, red cabbage) Contents: 80g Expiration date:
Indicated on the bottom Preservation method: Avoid direct sunlight, hot and humid places Please save. Seller: Export Co., Ltd. 1
Yamashita-cho, Naka-ku, Yokohama-shi, Kanagawa Prefecture Silk Center Processing Site: Kobayashi Seika Co., Ltd. Assembly Place 2-2-5 Shinbori, Edogawa-ku, Tokyo If there is any problem with the quality, please return the actual product. Please send the can to the seller. Please return with postage I will have it. Manufactured on shared equipment with products containing dairy ingredients. Consume as soon as possible after opening. Nutritional information (per 100g) / energy 381kcal, protein 0g, fat 0.1g, carbohydrates 95g, salt equivalent 0g
Designed by Kazutoshi Amano + Lisa Tezuka (estimate)

If anyone knows how to get some of these exact ones online, or lives in Japan and would be willing to ship me some (compensated for time/effort in addition to cost/shipping), I’d be eternally grateful!