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Rough (ラフ, Rafu?) is a romantic comedy swimming manga by Mitsuru Adachi. It was published by Shogakukan in Weekly Shōnen Sunday from 1987 to 1989, and collected in 12 tankōbon volumes. The series was adapted into a live action film in 2006, released in Japan by Toho.
The story is about high school student Keisuke Yamato, a 100 m freestyle swimmer, and Ami Ninomiya, the diver he falls in love with. Their families own rival confectionery stores, and Ami hates Keisuke's family because she believes her grandfather was driven to an early death because of the Yamato "horned owl" manju, which outsold her family's owl manju because it had ears, making it larger.