日向坂46 竹内希来里ポストカードの高価買取価格

It looks like you're referencing a product related to the artist or member from Hinatazaka46, specifically a limited edition item available through HMV & BOOKS online, which includes a postcard of Kira Takeuchi. The mention of "20±SWEET" could suggest a magazine or publication issue related to this item.
If you need specific information about the product, such as its price, availability, or details on the contents, I recommend checking directly on the HMV & BOOKS online store or any related official website for the most accurate and up-to-date information.