In the emergency room of Agricultural University Pet Hospital, intern Tian Tian and her mentor revive a Samoyed after it briefly loses vital signs. The grateful owner, Shen Mi, turns out to be her idol from school. After graduating, Tian Tian joins her father at Tianlin Animal Hospital. On her birthday, she mistakenly confuses Shen Mi for her father in the hospital, leading to a mix-up.

Shen Mi brought Carlo home, scolding him for being too trusting and urging him to be smarter. Meanwhile, Shen Chen called to share his infatuation, but Shen Mi dismissed it as another fleeting crush. At Tianlin Hospital, Tian Tian panicked before a surgery on a silver fox dog, Loki, and fled the operating room, leaving it to Dr. Chen Yifan.

Shen Rongxian, chairman of Lvchuan Group, was live streaming a promotion when his mischievous grandson Shen Chen interrupted. Later, Shen Mi arrived for dinner and set a bet with Shen Chen, challenging him to find a legitimate job within a month without family support. Meanwhile, Shen Rongxian tasked Shen Mi with turning around a loss-making pet hospital.

During a struggle over Carlo's food, Shen Mi and Tian Tian fell to the ground, caught by Han Mengnan, who had brought a private doctor for Shen Mi. Despite Han's offer, Shen Mi insisted on keeping Tian Tian as his private doctor. Reluctantly, Tian Tian agreed to meet Shen Mi's grandfather, Shen Rongxian. After successfully passing an inquiry, she officially became Shen Mi's private doctor.

Tian Peilan urged Tian Tian to prioritize the survival of Tianlin Hospital and set aside her biases to collaborate with Shen Mi. However, Tian Tian felt their values were incompatible. After Grandpa Zhou suffered a heart attack, his loyal dog Hu Zi waited anxiously outside the hospital. At a university reunion, Tian Tian drank excessively and lashed out at Shen Mi, deleting his contacts in anger.

Tian Tian opened up to Shen Mi about her trauma from losing her beloved dog, Zai Zai, and her inability to perform surgery since. Tragically, they learned that Hu Zi had died from severe injuries, leaving Tian Tian devastated. Shen Mi comforted her, emphasizing the gratitude of the animals and owners she had saved and encouraged her to accept his collaboration offer.