Inclusion Criteria:
* Male or female, 13 to 18 years of age.
* According to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Diagnosed with Major Depressive Disorder (MDD) and currently experiencing a Major Depressive Episode (MDE).
* Meet the threshold on the total HAMD17 score of \>/=17 at both screening and baseline visits (Day -7 and Day 0).
* Meet the threshold on the total SHAPS score of \>/=20 at both screening and baseline visits (Day -7 and Day 0).
* Not take any antidepressants for two or more weeks before screening.
* In good general health, as ascertained by medical history.
* After fully understanding the treatment of transcranial magnetic stimulation, willing to cooperate with the treatment actively and able to provide informed consent.
Exclusion Criteria:
* Current diagnosis of a Substance Use Disorder, with the exception of nicotine and caffeine dependence.
* Current diagnosis of mental disorders other than Dysthymic Disorder, Generalized Anxiety Disorder, Social Anxiety Disorder, Panic Disorder, Agoraphobia, or Specific Phobia (unless one of these is clinically unstable, and/or the focus of the participant's treatment for the past six months or more).
* History of schizophrenia or schizoaffective disorders, or any history of psychotic symptoms in the current or previous depressive episodes.
* Any other Mental Disorders, Personality Disorders, Intellectual Disability, which at screening is clinically predominant to their MDD.
* Has a clinically significant abnormality on the screening examination that might affect safety, study participation, or confound interpretation of study results.
* Any current or past history of any physical condition which in the investigator's opinion might put the subject at risk or interfere with study results interpretation.
* Participation in any clinical trial with an investigational drug or device within the past month or concurrent to study participation.
* History of electronic instrument or metal in the head or skull.
* History of epilepsy.
* History of cardiovascular disease or cardiac event.
* History of OCD.
* History of autism spectrum disorder.
* History of rTMS exposure.
* Other situations judged by the researchers to be unsuitable for the study.
