Sing a song when you are sad

Guan Liangpei (played by Jia Jingwen) fell into despair after being ruthlessly abandoned by her boyfriend Zhao Yu (played by Shen Xiaohai), and was on the verge of mental collapse. College classmate Wang Jingfan (played by Huang Lei) has been silently admiring the innocent and kind-hearted Guan Liangpei. When she was most sad and in need of care, Wang Jingfan silently guarded her. As time went by, Guan Liangpei gradually became dependent on Wang Jingfan, but this dependence was not love. What Wang Jingfan didn't expect was that Zhao Yu would appear next to Guan Liangpei again. Guan Liangpei's feelings for Zhao Yu have revived, but Zhao Yu is just taking advantage of this poor girl. Guan Liangpei's vacillation made Wang Jingfan feel very painful. At this time, a female student named Meili (played by Cao Xiwen) stood silently beside Wang Jingfan.