 However, when deeply frightened or upset, she does cry, and she has an unexplained fear of anything resembling a bullseye.At the start of the series, Yotsuba is shown as having very little knowledge of the world around her, even for a young child.Things such as swings, doorbells, cicadas, and air conditioners all fascinate and confuse her, although she is not perturbed by her ignorance.