Behavioral neurology is one of the sub-specialty of neurology that targets the cognitive impairment and behavioral and mental problems of neurological diseases. Neuropsychology is a fundamental tool of behavioral neurology, but behavioral neurology is not a mere paraphrase of neuropsychology. Behavioral neurology includes genetics, pathology, physiology, pharmacology, imaging, rehabilitation, and so on. In this talk, I would like to convey the charm of behavior neurological research reviewing what I have been doing.