Natsuki, Tomoya, Keiichi and Tsuyoshi are high school students and close friends. The four boys have no club activities, and they hurry through their studies so they can spend their days having fun. Their main topic of interest is love. Natsuki has an unrequited crush on Anna, a girl from another class, and his friends keep meddling in their relationship.

Source: ANN

Note: Each episode of Rainbow Days is divided into two parts. The first segment is the main anime series. The second is a live-action series titled club RAINBOW!, which features behind-the-scenes looks into the show's production and the Japanese voice acting career as a whole.

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Other: Niji-iro Days: Niji-iro Biyori