The former television script writer and essayist won the 99th Naoki Prize in 1988 for his novel Coo: Tooi Umi Kara Kita Coo.
Kageyama also contributed to the films Sakana kara daiokishin!!
(1992), Saraba itoshiki hito yo (1987), and Hoshikuzu kodai no densetsu (1985), and appeared as a judge on the TV series Iron Chef.
Kageyama died at the age of 50 following a house fire at his residence.
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