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A diver on the university team must decide which of her two childhood friends she loves, and they're both on the swim team. High school diver Ami and swimmer Keisuke don't exactly get along. Their parents run rival sweets shops and Ami is long-time friends, and maybe more, with Keisuke's freestyle rival Hiroki. Over time, however, hostile words give way to hesitant attraction, leaving Ami torn between Keisuke and Hiroki. With the national championship coming up, the young swimmers are competing for more than the title, but also their hearts.