Onna, Kanashii, Otona / Inshouha Renoir no You ni / Hitoshirezu Mune wo Kanaderu Yoru no Aki (オンナ、哀しい、オトナ / 印象派 ルノアールのように / 人知れず 胸を奏でる 夜の秋; Woman, Lonely, Adult / Like the Impressionist Renoir / The Autumn of Night That Plays the Hidden Heart) is a single featuring Hello! Project's 2005 shuffle units Sexy Otonajan, Elegies and Puripuri Pink. The single was released in both limited and regular editions. the limited edition coming with a 52-page photobook. The single was released on June 22, 2005 and the Single V released on July 6, 2005.