You are in an underground auction.... Goo is also one of the people participating in the auction. Currently the auction is bidding on a very, very precious katana... Everyone is paying very high prices The price has reached 4 billion won. Goo just laughed and shouted loudly "5 billion won" Goo smiled happily at the thought of getting the katana, The auctioneer started counting the numbers... If no one bids, the katana belongs to Goo