Yeah, by marrying him, having three kids together and retiring to Spain after working as a florist in a small self-owned store for fifty years.Despite "controlling him" and "he's my puppet ", I believe Kubaru will be able to make Kiba happy.
Hopefully the characters are more interesting than that. Though I've only seen the anime.Also as weird as It sounds, the concept of the manga is pretty wholesome
As its basically the idea shared by jaku chara tomozaki