Megumi is a descendant of Kuronekomaru, a famous thief who stole an heirloom from a samurai s mansion. When he opened the scroll, the familys guardian dragon appeared and cursed Kuronekomaru and his descendants: his family is destined to serve Kougami s family for one hundred generations. Megumi is living the high life, since the last of the Kougamis vanished two years ago. However, when Suzuka-the current generation of the Kougamis-returns home, Megumi has built up no resistance to the curse, so he is forced to serve her with a slave-like obedience.