Premise: The Sound of Waves (潮騒 , Shiosai ) is a 1954 novel by the Japanese author Yukio Mishima. It is a coming-of-age story of the protagonist Shinji and his romance with Hatsue, the beautiful daughter of the wealthy ship owner Terukichi. For this book Mishima was awarded the Shincho Prize from Shinchosha Publishing in 1954. It has been adapted for film five times.
Hypothesis: Yukio Mishima recieves a royalty from the five film adaptations of his novel "The Sound of Waves).