Ren Xin is sent to prison on suspicion of killing the empress. After that, she fakes her death and escapes to Wu. She lives with a blind lady and changes her name to "Ren Ru Yi". Ru Yi intends to rest and recuperate. However, she's selected by the Crimson Guard Branch in Wu to become a White Sparrow, one of the lowest-ranking members. Thus, she uses that fact to her advantage and pretends to be an ignorant White Sparrow. She intends to locate the culprit who harmed Empress Zhao Jie once her inner force recovers. (Source: Viu)