Tono (usually written TONO) is a Japanese manga artist born on April 13 in Hiroshima Prefecture, Japan, but currently residing in Osaka. She is the eldest of three children, and her younger sister is manga artist Mitsuru Uguisu, with whom she has a dōjinshi circle called "Uguisu Shimai"(うぐいす姉妹lit. "Nightingale Sisters"). Tono made her debut in 1983 with Shima Shima Everyday(しましまえぶりでぃShima Shima Eburidei) in Puff, published by Zassōsha.