Mawaru Penguindrum
The story centres around the lives of three siblings, Takakura Kanba, Takakura Shouma and their terminally ill sister Takakura Himari. Himari passes away after going out on a trip with her brothers. She was however, miraculously saved by a spirit thriving in a penguin-shaped hat. In return for her extended life, the twins must search for an item known as the Penguin Drum with the aid of three peng...