Kokoro no Kanashimi心の悲しみ ; Sadness of the Heart

Rather more representative of the Nishioka siblings' writing style than Kami no Kodomo, this is a collection of one-shots that explore the thoughts and feelings of ordinary people in an odd, surrealistic manner replete with atypical and symbolic illustrations. More than one reading may be required if you are to completely grasp the core message behind each of these stories.