It has been pointed out that in Abe Kobo very efficiently used expressions by visual images or acoustic images in his books. Previous studies on ""Moetsukitachizu"" mainly focused on the expression by visual images related to metaphors of color. However, I found that in ""Moetsukitachizu"", the expressions by acoustic images is the main effects of sense through the entire book. Two characteristics of acoustic images are non-discrimination-of-direction (It can be heard regardless of listener's directions.) and non-discrimination-of-intention (It can be heard regardless of listener's intention.). These characteristics of acoustic images effectively demonstrated the main theme, disappear that only result exists without cause.