Under the Locust Well

In your body, your fiancée lives. She died before you were born, but because of a strange marriage contract, her soul symbiotically existed with you. Sixteen-year-old Su Mo's parents have moved away, and he and his grandfather guard the old house on the outskirts of the city. After entering high school, he began to "lose" time frequently. Until I found a diary with an unfamiliar handwriting deep in the drawer, signed Lin Wan'er - the name of the mother in the old photo of the gentle pregnant woman who had never been born. The diary reveals a horrifying truth: twenty years ago, in order to quell the strange phenomenon in the old house, the Sulin family made a "yin-yang marriage contract", binding their unborn eldest grandson Su Mo to their eldest daughter Lin Wan'er. Lin Wan'er's mother and daughter died in childbirth, but their remaining souls were drawn by the contract and lived with Su Mo. From then on, Su Mo's body became a container. Lin Wan'er's soul protected him in the darkness from disaster, and also used his body to "wake up" when he was "sleeping", peeping into the world as a girl. During the day, he is Su Mo, a silent and withdrawn boy. Occasionally, he became the pale and sickly "cousin" Su Mu. Late at night, the girl in the mirror whispered, and the sound of wet scratching echoed from the ancient well in the backyard. As "switching" becomes more frequent, the dusty past emerges: the taboo runes carved under the old locust tree, the true purpose of his parents' departure, the terrible secret that his grandfather silently guarded, and the heavily sealed ancient well that is said to hold "old things" - where most of Lin Wan'er's soul and endless pain and resentment are sealed. ——Some contracts are engraved in the blood. Some companionship begins with death.