During the Republic of China, incense maker Shen Yan discovered a locust wood scabbard with a mirror pattern in a rotten lotus pond, which accidentally activated the dormant memory in his blood. Weird runes appeared on Uncle Wang's forbidden tea bowl and Xiao Tao's embroidered handkerchief, pointing to a mirror abyss curse that spanned a century.
Lin Zhao appeared with a green lantern and revealed that Shen Yan's mother had sacrificed her heart to seal Jingyuan. As the purple lines spread to her shoulders, Shen Yan saw the truth behind his mother's heart-cutting in the stone chamber cauldron. When the fog-eating disease spreads, black mist leaked out of the old bamboo flute. Shen Yan used an embroidered handkerchief to absorb the mycelium and discovered that the utensils could bear pain.
After sneaking into the mirror city at the bottom of the lake, he dug out the tear mole and melted it into three weapons, and the green lantern and snow mist turned into his mother's shadow. In the end, the nursery rhyme completes the sentence "A broken vessel gives birth to a new soul", and the dark river stele reflects the two lines of the past and the present - a hundred years ago, the mother made incense to calm the fog, and a hundred years later, Shen Yan used the utensils to pass on the light, turning the black fog into morning dew on the water chestnut buds.
