Chapter 1: Rainy Day

Baekhyun believed he did not have a younger sister, and LuHan thought that he was an only child. However, their lives are turned upside down when their younger sisters arrive in front of EXO's door. EunAh, Baekhyun's younger sister, and SoRa, LuHan's younger sister, go on the biggest adventure of their lives. Here they'll experience a Kpop idol's life and what their brothers are really like. See what it's like to have an older brother that's a Kpop star.

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