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If It's Not You

あなたじゃないと

Hisami is a high school girl who has never had a boyfriend. At a school festival, she develops a crush on her classmate Haru-kun, but a misunderstanding leads her to start dating his friend Narushi instead. To make things more complicated, Haru-kun begins dating Hisami's best friend, Izumi.

One day, Izumi suggests that they all swap partners for a single day. For just one day, Hisami gets to date Haru-kun. Excited by the prospect, she agrees, but Haru-kun takes her to a love hotel, leaving her unsure of what to expect.

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