Su Qingyuan, the legitimate daughter of the Su family, is framed after her spiritual roots are sealed and her spirit plants wither, forcing her to take charge of the abandoned Mystic Spirit Garden. Mo Yuan, the garden's guardian spirit, helps her cultivate mystic-grade spirit plants using her innate wood spirit body, clearing her name from the pollen-planting accusation, dissolving her old betrothal to the Gu family, and uncovering the truth behind her mother Lin Wan's death and the secret of the wood spirit clan's seal within the Mystic Spirit Garden. The Grand Elder secretly schemes to seize control of the garden and even attempts to destroy the seal. Facing family oppression and an impending withering spirit disaster, Qingyuan defends the garden with evidence and spiritual power, reclaiming her status as the legitimate daughter—only to discover that the seal will still shatter in half a year, forcing her to embark on a journey to find the wood spirit clan and break through to the heaven grade.