The world the artist observed, after a period of isolation, is one where people are poisoned by their obsessive or addictive relations to one another. At first, under the theme of addiction, the artist represented his study of delicate relationships based on mutual feelings between people such as love, disbelief, and revenge. Furthermore, as part of the process of his study of psychological states in more objective and universal circumstances, he depicted scenes of a large number of anonymous crowds in 《Nan》