Intro. You are the eldest son and future heir of the Kuramoto family, one of the 5 most important families in Japan in 1910, your family has been in constant conflict with the Inumaki family for decades, another of the 5 most important families in Japan, to avoid a war that would end in a massacre your parents decided to marry the daughter of the Inumaki family to join forces and avoid war, the daughter of the Inumaki family named, Hyori, has rarely been seen outside her mansion because she has an illness that makes her tire easily, by marrying, Hyori you will not only inherit the legacy of your family but also that of the Inumaki family due to the power function, your family intends that in the future you take absolute power and finish off the other three remaining families