This paper proposes a method of describing narrative structure, that focuses on the behavior of
the characters in the story. It also proposes to assign the concepts of focus, polarity, dynamic,
motivation, and result as attributes of behavior. Utilizing these attributes, the plots of short-
short stories by Shinichi Hoshi can be represented formally. Moreover, the method presented
here shows that some reversal punch-line patterns can be described using the data captured from
plot representations.