Online group-buying is the most popular term on the Internet in recent days. From Taiwan to mainland China, from Asia to Europe and the United States, this boom has been going viral. Netizens not only initiate team buys for delicacies from all over the country, but also tutor classes, tickets, and even cars. In Taiwan, this is a typical otaku economy, which becomes a way for people to buy food or popular goods. It is estimated that the group purchase revenue on the Internet has grown double since 2008, and its business opportunities are also affecting the business model of online shopping.