Clearly, this Shi Changxin is someone sent by the Shi Family, and why would the Shi Family send someone? It couldn't possibly be just to show off the mysticism of Ancient Martial Arts, right? Naturally, they must be here to steal something.
Song Yun had some idea why the Shi Family wanted to steal this thing because Ye Yinyin once told him that the Shi Family prides itself as the guardians of Shen Zhou, claiming they won't allow anything that could disrupt stability to exist, and Professor Tao's research obviously could affect that stability.
