Ryou Fujibayashi gathers her courage to express her feelings to Tomoya Okazaki on a rainy day, and they start a lovely and tranquil relationship despite their short acquaintance. But when a rumor about Tomoya and Ryou's sister Kyou starts circulating in school, the Fujibayashi twins and Tomoya must confront their emotions and discover where their true affections lie. This may require facing the harsh and painful truth amid the pouring rain.