Konosuke Aoi runs a small psychiatric clinic in a back alley in downtown Shinjuku.By listening carefully to patients and patiently facing their symptoms, Dr. Aoi diagnoses diseases that other doctors fail to recognize and brings hope to patients.

Yuri Amamiya, a nurse who worked in a psychiatric department for the first time, became increasingly fascinated by psychiatric treatment through constant observation of Aoi's work.However, Amemiya didn’t know that Aoi also had a tragic past——