To save her older sister, the young Zhu Xiaoman risks climbing a cliff to gather a miraculous herb. Unexpectedly, she saves Ruisheng, a snow leopard spirit beast who is gravely injured. After transforming into human form, Ruisheng comes to the Zhu family to repay his life debt, doing everything he can to help the two sisters. Although villagers grow suspicious of and ostracize him when his beast ears are exposed, he remains kindhearted. When mountain floods and avalanches threaten their lives, Ruisheng steps forward to protect the entire village. After enduring life-and-death trials, he and the gentle yet resilient Zhu Baili overcome society's prejudices and finally remain together.