Lin Wan was born with the ability to understand animals, but her family treated her like a freak. After cutting ties with them, she applied for a job as a dog trainer for the Gu family. The Gu family's Tibetan Mastiff suddenly went berserk, and she realized that the dog had been abused and was reacting violently to the scent of black sandalwood musk. Following the clues provided by the animals, she uncovered the Gu family's eldest son's involvement in the scheme. Although the Gu family's second son was curious about her secret, he repeatedly risked his life to protect her. Meanwhile, Lin Wan's parents and younger sister repeatedly took the villain's side and betrayed her. With the animals' guidance, Lin Wan thwarted the conspiracies and stopped seeking approval from her biological family. In the end, she found her own place in the world and fell in love with the Gu family's second son.