On a rainy day, Ryou Fujibayashi musters up the courage to confess her feelings to Tomoya Okazaki. Despite not knowing each other for long, the two start dating and develop a harmonious relationship. However, tensions begin to rise when a rumor surrounding Tomoya and Ryou's older sister Kyou spreads around school.

Navigating through a web of emotions, Tomoya and the Fujibayashi twins determine where their love truly lies—even if it means standing in the downpour of the heartbreaking truth.