The Ashikaga era is a part of Japanese history.

The Asuka Period is a part of Japanese history, a time when culture and arts greatly developed.

The Muromachi period is a part of Japanese history, a time when many cultural changes occurred.

The Kamakura period was a very important time in Japanese history.

He is taking sedatives to control his stress.

He is an expert in psychiatry.

His father was diagnosed with schizophrenia in the past.

His brother was diagnosed with schizophrenia a long time ago.

He has psychopathy, making it difficult for him to understand social rules.

He is known as an expert in psychoanalysis.