While trying to free her sister from Fahai's clutches, Xiao Qing winds up in a dystopian city and meets a mysterious man who can't recall his past life.

A mischievous snake who assumes human form interferes with the romance between her reptilian sister and a hapless man.

Thousands of years ago, the green snake gradually gained enlightenment under Daoqing, and came to want to stay with Daoqing. However, because of its obsession with Daoqing, Daoqing entered the tribulation of reincarnation and suffered a lifetime of death. In order to resolve Daoqing’s calamity, the Green Snake has been searching for Daoqing’s reincarnation for hundreds of years...