3.442 out of 5 from 150 votes
Talented art student Eiri works part time at an antique store, where many of the items on sale are said to 'have a story behind them'. Recently, he has been having visions of a beautiful yet sad-looking young girl named Cossette. These visions lead him to the stock room, where he finds an unfinished painting of the girl. The former owners of the painting all died in bizarre ways, and according to Cossette it is only one of many of her former belongings - belongings that remember her, that bind her to this Earth, that will continue to drive people mad. That is, unless Eiri can save Cossette from her eternal suffering...
In the near future, some girls are born mutated. Known as Diclonius, this new species is believed to have been chosen by God to wipe out mankind. Unlike regular humans, Diclonius have two horns on their head and ‘vectors' - invisible ‘hands.' Contained within a research facility unknown to the world, the Diclonius are experimented upon mercilessly; many die or develop a hate for mankind. One such creature, Lucy, is said to be the first of the Diclonius. She escapes from the facility, but while fleeing she takes a bullet to the head and is seemingly killed. However, it seems Lucy isn't quite dead yet; she's instead developed an alternate personality called Nyuu. She's washed up on a shore where two people, Kouta and Yuka, find her and bring her home, unaware that such a monster still lurks within Nyuu.
Taking violence and turning it into a thing of beauty is quite a skill that is achieved by both Elfen Lied and Le Portrait de Petit Cossette. These two series are filled with dark looming undertones mixed with cute, innocent looking girls.