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A connected series of love notes scribbled in library art books convinces gawky grocery store clerk Hyun-chae that a mystery man - known only as 'Vincent' - is pursuing a relationship with her. Meanwhile, an infatuated pal from her high-school days - shy, quirky subway driver Dong-ha - relocated to Seoul to ACTUALLY pursue a relationship with her, which she rejects in favor of the ersatz paper chase provided by her mystery man, going so far as to pawn Dong-ha off on her friend at one point.