Kim Namjoo is a simple and happy-go-lucky girl. She smile a lot but there's a secret behind her smile. She never like the taught about dating or giving any commitment. He hated men for some reasons. He close her heart for any men.

While Do Kyungsoo, a guy who never dated before felt instantly in love with Namjoo went he saw her for the first time. He try everything to know about her but Namjoo keep on pushing him away. but he never gave up. His eyes only fix to one girl and that is Kim Namjoo.

Will Kyungsoo success in winning Namjoo's heart? Will Namjoo open her heart for love again?