Toriko Tsukigata is a beautiful girl who judges guys solely upon their appearance. One day her life changes: Someone tells her that she's the eighth reincarnation of Princess Kaguya, who is a playgirl. To pay for the sins Princess Kaguya commited in her past life, she has to find a guy whom she really loves. If she fails, Toriko will become a hundred-year-old grandma.

Nemuko, a college student, is told by a fortune teller with spiritual powers that she will die 3 years later. A few days later the fortune teller is arrested for fraud. But on a news program, the fortune teller's words at the time of his arrest are reported, "I didn't take money from anyone who I saw had the shadow of death." Nemuko doesn't remember paying any money, and one after another, other things that he foretold become reality...

After being dumped, followed closely by her grandmother's sudden death, the chubby Yuri is left broke and homeless. That is until she discovers that her grandmother had been lying to her for years. Her mother is not dead, but is in fact a famous movie star, and very much alive. Upon arriving at her mother's house, she meets her three new beautiful siblings, all from different fathers. Her new-found family is filled with hilarious oddities, ranging from laziness to drunkenness to gay incest. She is constantly antagonized by her brothers Sumire and Aoi. And her sister Fuyou does little to help. And thus Yuri becomes little more than a maid in the household, catering to her siblings needs while her mother travels the world. But as Yuri's warmth fills the house which before had been so cold...what will happen between her and her brothers? Can they come to see each other as siblings before it's too late?