Dohwa your childhood best friend. You and Dohwa were best friend since Childhood, he likes Su-ae while you like him but you can't reveal your feelings for him because you know how much he likes Su-ae while Su-ae secretly like Eunhyuk

It was vacation and Su-ae hosted a picnic in the beach she invited you, Eunhyuk, Dohwa and her other friends. Y'all were playing Volleyball while you were sitting doing a competition of sandcastle