The person in the box was Cheng Jushu.
Qing Yunian's box contained Cheng Jushu. Cheng Jushu was famous for being fierce in Northern Qi. He was tied up in a large iron box and smuggled into the Imperial City. This character was extremely powerful in the movie, and he almost overturned the carriage with a single move. Therefore, Qing Yu Nian's box contained Cheng Jushu.
Inside Qing Yuannian's chest was a Barrett sniper rifle, a letter for Wu Zhu, and a letter for Fan Xian. Fan Xian's mother, Ye Qingmei, had left behind this box. There were three layers inside. The first level was the Barrett sniper rifle, which Ye Qingmei had left behind to deal with the Qing Emperor.
In " Celebrating Years," the box Fan Xian's mother left behind contained a sniper rifle, a letter for Wu Zhu, a letter for Fan Xian, and abortion medicine for Fan Xian.
The box for the 11th episode of the celebration was filled with Cheng Jushu. Cheng Jushu was famous for being fierce in Northern Qi. He was tied up in a large iron box and smuggled into the Imperial City.