Since childhood, Xu Yuan has been accompanied by the mysterious ancient fierce beast Jun Liyuan. The two made a symbiosis pact, and Jun Liyuan protected her as she grew up safely. For a long time, Xu Yuan only regarded him as her guardian, but day by day in their time together, unusual emotions quietly sprouted. A strange beast suddenly appeared to disrupt things, bringing a tribulation test of love, and external rumors followed one after another. Amidst the turmoil, Xu Yuan gradually saw her inner self clearly, facing the crisis hand in hand with Jun Liyuan to resolve each other's misunderstandings. The species-transcending companionship settled into a sincere romance, and the two broke through obstacles, running toward each other to jointly guard their peaceful time.