Usagi's Happiness

Usagi's life has never been easy, the only part that keeps him threw it is his family, his step-brother Ryuu. Usagi transfer schools then the school is Ouran high school, then due to some circumstances Usagi is posing as a girl. He finds himself involved with the host club of the school. What's going to happen is he going to finally find happiness. Yaoi KaoruxOC or ?xOC.