According to the statistics shows that there are 90 million people with depression in China, and less than 10% of them have received the specialist treatment. About 280,000 people commit suicide each year in China, and most of them are diagnosed with depression. Young girl Yiling's brother suffered from severe depression and committed suicide. Yiling has been plagued by this negative emotion and suffering from depression. How will she face the problems of study, job, feelings, friendship and kinship?