How do Yahoo! Japan Auctions “Buy It Now” auctions work?
On Yahoo! Japan, a seller can choose to set a “Buy It Now” price on an auction. This means that if someone bids that price or more, the auction is closed immediately and that bidder wins the auction. If, for any reason, you do not want to buy the item now, you must bid below the “Buy It Now” price. Please note that, unlike on Ebay, the “Buy It Now” price does not go away if someone places a lower bid. It stays in place until the auction ends or someone meets the price, which means that even if you place your bid early, someone else can still come along, use the “Buy It Now” price, and win the auction.