The "redundancy" in ideating a storyboard of character animation is investigated in this study. Three practical experts are experimented to ideate a storyboard of short character animation by empirical research to find the existence of redundancy and its use in ones ideation. The Act One of Midsummer Night's Dream is taken as the script to ideate to be a storyboard. The redundancy is an idea unit with repetition and familiarity that includes audience's common experience to catch most popular approvals. It is found that the idea with repetition and familiarity (i.e. redundancy) really exists in experts' ideation of storyboard, resulted by the protocol analysis and linkography. The quantity of redundancy that the experts used is indefinite to complete ones ideation of storyboard and it shows a suitable contiguity, reflects the theme, to communicate with audience deeply; and not to be overloaded in audience's visual memories.