Zhao Pan'er is a smart and savvy teahouse owner in Qiantang, living alongside her two best friends Sun Sanniang and Song Yinzhang. When she finds out her fiancé left her for another woman of a high ranking officer after becoming an official in the capital of Bianjing, she refuses to give into her fate and decides to travel to the capital in search for the truth. On her way there, she crosses paths with both of her best friends whose lives she saves, and they follow her onward. Gu Qianfan is a commander in an elite capital squadron nicknamed "Living Devil". He is setup by the very people he swears allegiance to and must find out the truth behind a nefarious scheme involving the imperial court. When he first meets Zhao Pan'er, they don't see eye to eye, however this intelligent businesswoman has caught his attention and as they help each other, they get closer to their own goals.

The Dark King from the dark world wants to seize the power of the stars and rule the universe, it assigns the General Hui Guang to attract powerful beasts everywhere to devour human's heart. In order to protect human civilization, a group of young people use the power of the star from the sky to become Armor Heroes, and fight against the Dark King with their own bravery and fearlessness. The chaos caused by the alien beast continues, and the Armor Heroes will overcome the difficulties and obstacles ahead with the indomitable will, and work together to against the evil Dark King and General Hui Guang's conspiracy.