The Order of the Guardians existed for many years, inhabiting a temple where the inactive Miraculouses were kept. It was also their duty distribute the miraculous jewels to worthy people so they could benefit all of mankind which required them to travel all over the world. In picking those who were worthy the guardians would perform a test and depending on that test if the person passes that means they were worthy of a miraculous jewel. As well as watch over the wielders they gave the jewels to and guide them if they need it. But when it came to those who were unworthy it was their job to retrieve the miraculous sometimes even seeking help from wielders they've chosen to do so.
However, when Wang Fu was young, he made an unspecified mistake that resulted in the temple being destroyed, the Butterfly Miraculous, Peacock Miraculous, and Miraculous spellbook being lost as well. Wang took the remaining Miraculouses in the box, and he has kept watch over them by himself since then.
System
Guardians are chosen as children to be trained for many years in order to be prepared for the task of watching over the Miraculouses. They are taught to understand the code in the Miraculous book, although Wang wasn't able to learn it completely before the book was lost.
The last known remaining guardian after the incident at the Guardian's temple. As a Great Guardian, he watched over the Miraculouses in the Chinese Miracle Box before renouncing his title.
