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Minjoo’s lonely. She keeps herself busy with social media, but that doesn’t help the fact that her husband’s distant and she’s virtually friendless. Nothing changes until she runs into Seo Jia, a handsome girl who’s just moved in downstairs. Minjoo’s never met anyone like Jia before, and can’t help but fall for Jia’s charms. But little does Minjoo know that their m more.. eeting wasn’t exactly serendipitous; in fact, every one of Jia's moves is carefully calculated...so that she can get her revenge!