Picasso is part of the discount store chain Don Quijote and carries a wide variety of products including packaged foods and alcoholic beverages, cosmetics, clothing, and much more. The Akasaka store is just a 10-minute walk from the hotel. Tax-free shopping is available to international travelers.
Don Quijote Picasso Akasaka Store
[10 min. on foot from hotel]
Don Quijote English website
https://www.donki.com/en/store/shop_detail.php?add=1&shop_id=289&pref=13