When the dark and evil immortal descends from heaven and the mysterious underground ghost palace is revealed, a strange herb named the Black Tea suddenly takes Changan City by storm. However, no one knows whether it is a healthy medicine or one that could harm people. Cases of missing brides in Changan City began occurring one after another, which seems to be inextricably linked to the black tea...

Ling Feng, general of the Jin Wu guards was tasked to investigate these cases. On his journey, he meets his strongest opponent in Su Wuming, the disciple of Di Renjie. The two of them work together to solve these mysterious cases.