Sadakazu Fujii is a poet and scholar of Japanese literature which includes the genres of ancient novels, the Man'yōshū, oral literature, Okinawan culture, Ainu language, and contemporary poetry. He is well known for his study on the Genji Monogatari. His poems and palindromes have been used in the musical compositions of Takahashi Yuji. He won the 3rd Ayukawa Nobuo Prize at "Spring Tree Tree" (published in 2011), and received the Minister of Education, Culture, Sports, Science, and Technology Award.