A whole line of patients are waiting outside a quaint Chinese medicine store— Yi He Tang. A sense of sorrow permeates the all area. People all come with a melancholy look, among whom including Ms. Kao, dressed in black with sunglasses, a dispirited man with stubble, and a student with tears hanging on her cheeks. There’s only one reason for their presence— the secret formula for broken hearts.

Yi He Tang has been around since the Qing dynasty. Having passed from father to son for four generations, this store claims to have an unmatched elixir for broken hearts. Ms. Kao’s husband disappeared, and En’s girlfriend suddenly spoke of leaving for Tokyo. What exactly is love? Does love make sense?