Currently, we have developed a basic framework of general narrative generation system for the purpose of supporting human creative tasks. In this paper, we examine the narrative conceptual generation process by computer through analysing a short detective story. As a result of the analysis, we could devide narrative structure into three aspects; story, plot and construction. While the story is an events sequence that was arranged according to a temporal order in a narrative world, the plot is an events sequence that was reorganized by an order which each event is introduced into a narrative. The construction is the most detailed conceptual representation. A narrative generation process is performed by expanding or transforming a tree structure through these levels. In this paper, we introduce some kinds of relational knowledge that operates the narrative tree based on the analysis.