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