Dongwoon is painfully shy. He's also very clumsy. He can't seem to help it when there were people around. He turned into a complete wreck. He has a comfort zone, though, and it lies in the library. One day, he bumps into someone on his way into the library- a girl- and she's pretty and reading his all-time favorite book. Now, he sees her in the library everyday. He wants to talk to her, and he has this huge crush on her. But what's he supposed to do?