Bai Qingluo accidentally crosses into Xia Yingguo and absorbs Xiao Yihan's life-saving "Spirit Silkworm," revealing her unique physique. Intrigued, Xiao Yihan asks the emperor to grant their marriage. Upon learning she’s to wed the insane, disabled Prince Han, Bai Qingluo tries to flee but is caught by Xiao Yihan, who uses her family’s safety to force her to stay.