Among the billions of people on Earth, there is always at least one who is your Mr. Right. The question is, how can you find him... Liang Ruoqing (played by Ariel Lin) had a sweet love in college, but her boyfriend Allen (played by Li Yifeng) gave up Ruoqing in order to develop his music career, which hurt the latter greatly. Ruoqing has since joined the lovelorn women's mutual aid group created by her aunt. After five years of influence, men are just a group of liars in her eyes. After graduation, Ruoqing worked as a volunteer in the hospital and met Lu Zhehan (played by Chen Bolin), the attending physician who the whole hospital had high hopes for. The dazzling light emitted by Lu Zhehan made Ruoqing confused. Under the guidance of the mutual aid group, she launched a plot against Lu Zhehan in order to resist her heartbeat instinct. However, Lu Zhehan's proper behavior made Ruoqing unable to succeed. Just when Ruoqing's heart was secretly moved, her emotional trajectory fluctuated again...