Little rabbit spirit Wen Ruanruan bitterly awaited the emperor's reincarnation for eight hundred years, and when drunk fell into the mortal world, crashing into the disabled prince Wen Jingshu. Carrying immortal aura that could alleviate Wen Jingshu's leg ailment, she was kept by his side. While Wen Ruanruan used immortal aura to nourish him, she resisted the flower fairy Yun Mu taking her back. Wen Jingshu gradually grew moved, and the two went through assassination schemes and suspicions of background; Ruanruan revealed her human form, stabilizing her cultivation relying on her own immortal power and Wen Jingshu's blood. Disregarding family barriers, Wen Jingshu registered marriage and wed her, cast aside the prince's estate to live alone, crossed the barrier between immortals and mortals to stay together, accompanying each other to fulfillment.