Yushitaka Komori is an adoptive brother of Yui and he honestly hate his adopted family especially Yui with her shitty yet bitchy personality. His mood never improved whenever he's around his so-called family or the church's loyal comers because he is, and still is, a trouble-hater. But in all of that, he's secretly was grateful to be away from his actual family, the Miyashima. The said family is famous for underground works yet their identities are highly unknown. Yushitaka's real name is Yushihara but he changed his name to hide from the Miyashima family since they're very skilled on easily getting their hands on informations that either cannot be seen or very hard to get. And his life get complicated when he was told by his adoptive father, Seiji, to live somewhere with Yui, his sister that he very much hated. What makes his life more shitty than it is, is that he must live with the Sakamaki brothers. Can his life get any better?