Cure WorldCosplay (CW) has been operating as a community service for cosplayers and those around them (Photographers, Props Makers etc.) all over the world. We are a multilingual platform supporting 12 languages where more than 720,000 members from more than 180 countries post their quality works, 6.5 million images, and counting. Cosplay Economy has been drawing attention as a market in recent years. However, cosplayers and people working close to them have their challenges, and for the sustainable development of the Cosplay economy, we need measures to meet and resolve them. We will take on the challenge with the power of blockchain technology, a revolutionary technology since the advent of the Internet.