For the Takakura family, destiny is a constantly turning wheel, pointing passionately toward them with equal waves of joy and sorrow before moving on to the next wishmaker. With their parents gone, twin brothers Kanba and Shouma live alone with their beloved younger sister Himari, whose poor health cannot worsen any further. On the day Himari is allowed to temporarily leave the hospital, her brothers take her to the aquarium to celebrate, where the family's supposed fate is revealed by her sudden collapse. However, when Himari is inexplicably revived by a penguin hat from the aquarium's souvenir shop, the hand of fate continues to tick faithfully forward. With her miraculous recovery, though, comes a cost: a new entity exists within her body, and its condition for keeping her fate at bay sends the boys on a wild goose chase for the mysterious "Penguin Drum." In their search, the boys must follow the threads of fate leading from their own shocking past and into the lives of other wishmakers vying for the Penguin Drum, all hoping to land upon their chosen destiny.