Mu Ma'er, from a single-parent family in Taipei, decides to swindle money from her classmate Meng Shiyu to pay for her mother's urgent medical treatment. But Meng's third uncle sees through her plan. Mu Ma'er tries dating Shiyu... only to realize she's developed feelings for his third uncle.
After learning the truth about what her mother has kept hidden for years, Mu Ma'er can no longer face the ambiguous relationship between her and the third uncle, so she decides to leave.
