In the 1960s, Zhao Yuecai and his family migrated from East China's Shandong province to the village in Bole.

At the time, residents frequently unearthed relics, either while farming or building their homes, but due to a lack of awareness, their discoveries often led to damage to the ancient city.

Driven by a desire to protect the relics, Zhao Yuecai took the initiative to protect the ancient city, becoming the village's first patroller.

His commitment left a lasting impression on his son, sparking a deep and lifelong interest in history. In 2007, when his father's diminished health no longer allowed him to continue, Zhao Yong stepped in, taking over the task of protecting the ancient city.