Jung Yunho is an actor. But not by wish. He became an actor to follow the girl he loves. But to be able to have her as a leading lady, he'd have to do a rated movie. They're expecting it to be a big hit if they'll have the famous byuntae writer 'Butterfly69' as a scriptwriter. But said writer's identity is hidden all along. And they want him to convince the anonymous person by himself. Will he accept? And will Yunho succeed in taking his love?