Kim Seung Yoon is a boy who doesn't open his heart to someone because of his sad past and doesn't want to have some girlfriend. and he is an idol. And there he mets Song Hyo Rin who is also an idol. And she keeps disturbing Seung Yoon and she doesn't know Seung Yoon's past. Will Seung Yoon fall in love with Song Hyo Rin? Will Seung Yoon change?