Australian international student Qi Yimo came to the host family that hosted her. Her arrival adds a touch of uneasiness to this seemingly warm and harmonious family. However, under the hostess's efforts to cover up, everything seemed to be calm. Until one day, Qi Yimo accidentally discovered the secret of this family - Envy who was suffering from a strange disease. In the process of getting along with Envy, the two people gradually developed a vague affection for each other. Just when the two people made up their minds to come together, what greeted them were family changes and misunderstandings between them...