乳牛シスター Ouko フィギュアの高価買取価格

The product you mentioned seems to be a figure of a character named "乳牛シスター Ouko," which is an illustration created by the artist Biya. The figure is produced by a company called Model Way and is numbered as 6974911410231. It appears to be a completed figure (完成品フィギュア) that has already been released and is in stock.
If you have specific questions about the figure, such as its features, price, or where to purchase it, please let me know!