Park Nara is all tensed up, and just for a pretty litlle problem. She comes from a long-line of Clairvoyants, and she is literally the most blind person in the family! And to add insult to the injury, her family had been mocking her by walking with a blind man's stick. 'How rude!', she thought. Just because she can't see an ethereal being, doesn't mean she should be mocked like that, especially by her twin sisters!

Meanwhile, Nam Woohyun had been floating for three days, oblivious to the reason behind his invisibility . All he remembers is that he haphazardly fell from the school's rooftop confessing his love for his girlfriend, for the umpteen time (with a bouquet of roses ). Of course he is devastated, but at the same time he had been observing some real life , (by sitting at the same bed with the couple) and walking in and out of some girls' bath. 

But all of that soon changes as Woohyun met Nara at the school's girls washing room.