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Irene was a former wimp. You know, glasses, nerdy, often bullied and all that. She decides to transfer to another school to start fresh. It was going well for her for a while, until the class president Kang Seulgi, finally came back from a week of absence. Seulgi was a kind, caring, smart and talented girl. But Irene cannot help but notice something eerie behind her cute personality. Who knows what it is? Well, Irene definetly knows now that she's locked up in the girl's basement.