It is illegal for idle fish to sell fake products for 112 yuan. The fake goods sold by sellers involve the infringement of intellectual property rights such as trademarks, patents or copyrights. Under the framework of intellectual property law, it is illegal to manufacture, sell or distribute fake and shoddy goods, and it will face serious legal consequences. Therefore, it is illegal for idle fish to sell fake products for 112 yuan. Xianyu is an online platform with the theme of second-hand trading in China, which is similar to the internationally famous second-hand trading platform eBay. Users can sell and buy all kinds of second-hand items on Xianyu, such as mobile phones, computers, clothes and furniture.