Subaru Sumeragi is the latest head of a respected family of onmyogi (interpreted here as magicians and exorcists). He is also only sixteen years old, and what little of his life that is not devoted to either school or performing exorcisms is essentially run by his twin sister Hokuto, who bosses him around and cooks for him. The twins live on their own in Tokyo, an arrangement that seems particularly unwise in light of the fact that Hokuto believes Subaru should become the lover of their acquaintance Seishirō Sakurazuka, seemingly a mild-mannered veterinarian who happens to be nearly a decade older.
Hokuto, who never seems to wear the same outfit twice (and most of them are pretty extreme), jokes that Seishirō must be a member of the Sumeragi clan's dark rivals, who use their mystical powers in assassinations. Whether he is or not, he does seem to be following along with Hokuto's suggestions with regard to her twin, declaring his love for the innocent Subaru and cuddling up to the boy suggestively. Subaru, meanwhile, has creepy dreams about a youth who tells him that cherry blossoms owe their color to corpses buried beneath them, which does not seem terribly surprising for a sensitive teenaged boy who spends a great deal of his time exorcising the ghosts of suicides.( Cut for spoilers … )
I see that it's been nearly two years since I've done an in-depth review of a manga (the last one was Gunslinger Girls in April 2013). Wah.