The YKChain project primarily serves large-scale wellness and healthcare initiatives. It aims to address challenges such as difficulties in user data aggregation, limited payment options, repetitive payments, and cross-regional consumption encountered by wellness and healthcare businesses during their growth. This project utilizes DApps to provide real-time, trustworthy data support for the platform, enabling businesses to collect health data that customers care about in a timely and appropriate manner and feed it back to them. By issuing tokens, it resolves issues of repetitive payments and cross-regional consumption, allowing users the convenience of a single payment that is valid nationwide.