The women of the Tachibana family, descended from the great-great-grandmother who married into the clan during the Meiji era, are all beauties. But Kanna, the second daughter and the black sheep, is a high school freshman with a flat, unremarkable figure and nothing attractive about her at all. Her special skill is tarot reading, though she inevitably ends up crossing her eyes during readings. One night, after becoming conscious of Genta Ichisei, the transfer student who moved in next door, Kanna discovers the Tachibana family's secret.