There was a controversy over NFT, which was created with blockchain technology in the 21st century, saying, "It is not Art Da VS Art." Hero Duck, who appeared like a comet claiming that "NFT is art," has no strong supporters, "Sodeokbi," and is recognized as the first contemporary art work by NFT and is the most expensive auction house in the world. NFTisms pioneering and representative art project, "Hero Duck," is the most popular art project in major locations around the world, including New York, Paris, Tokyo, Hong Kong, Melbourne, London, Dubai, Berlin and Shanghai. ...