Abstract
In this research we will support foreshadowing placement on story plot. For that reason, we extracted elements of foreshadowing from existing works and examined the arrangement and trend of foreshadowing. In addition, we developed a foreshadowing data library “Scrapbook for foreshadowing production support” that enables authors to search based on the analysis results. Evaluation experiments using this system showed that subjects were able to produce more complicated foreshadowing.