Nana wakes up in the middle of the night. A mysterious force draws her downstairs, where she mistakes Brother Gouli’s battle with a fearsome shapeshifting, polearm-wielding demon summoned by Hua Chengfeng and that is invisible to Nana’s human eyes as a fit of madness. When Nana catches Brother Gouli’s sword after the demon knocks it out of his hand, the sword transforms back into a toy sword.