When Sorim died, Sungjae vowed that he would never fall in love again. He pushes away every girl that tries to come near him. His wall stood firm and strong because that's what he believes he deserves. Until, a new transfer student, Park Sooyoung came along. His world and his wall begins to crumble piece by piece when this girl entered his world and made him feel things he never did before. There was just one problem; Park Sooyoung looks exactly like his ex - girlfriend, Yoon Sorim. Will Sungjae let Sooyoung into his world or will he just push her away?