Otoha Ono (小野乙葉) is a Shizuoka-born author and reality-television personality. Born on August 24, 2002, she appeared in a Netflix dating reality series in 2025 under the nickname Otosan. Futabasha published her autobiography, Dokuai, on August 19, 2026.
The 208-page book pairs her account of her life with 32 pages of newly photographed gravure by Chikashi Kasai. Its photography includes the oiran styling associated with Ono, alongside lingerie and rope-themed portraits. The publisher presents the book as a combination of autobiography and photographic expression.
