Elfen Lied

Elfen Lied (German for Elf Song) is a manga and an OVA anime which spans 13 episodes (both created by Lynn Okamoto). Known for its harsh violence and sexuality, Elfen Lied's deep story deals with human evolution and centers around a character with a clashing split-personality (Lucy/Nyu).

In Elfen Lied, mutated humans called dicloniuses exist. These dicloniuses grow horns on their heads and possess telekinetic powers; they have the power to control "vectors" &mdash; invisible "arms" with telekinetic power which can easily slice through human bodies. Seeing potential for science, scientists take to capturing dicloniuses and containing them in cells, where they are subjected to inhumane expirements and eventually executed. Dicloniuses are generally not compassionate.

One of the main characters, Lucy, is a diclonius.