What's the use of Yong Ren's certificate?

Record the complete experience. According to official website, the game "Never Robbery", the certificate of breaking iron and being brave is a rare task prop. Its function is to record Yong Ren's complete experience of joining Yun Qi, which can be obtained by interacting with events and infernal affairs. This is an important task prop. "Never Being Robbed" is a multi-player action competitive game with high degree of freedom, which is produced by 24 studios in China.