Casting

This is not a book, this will have the film inside. {Please note, these are videos}
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On Ah Rin's 20 birthday, Ah Rin, Eun Woo, Jin Jin and MJ were taken back two years into their past back to school. None of them know what happened, but it wasn't Ah Rin's first time going back, and she didn't know the other three boys had even come back with her.
Two of them lost their memories back to the present time, and Ah Rin and MJ had to explain it to their past friends. MJ tried to tell them, but no one believed him except Ah Rin.