Summary: The story involves human mutations called "dicloniuses," who grow horns on their heads and possess telekinetic powers, in the form of invisible "arms" called vectors.
The tendency for violence among dicloniuses varies among characters.
This virus is spread through non-lethal contact with the vectors of a diclonius.
The main non-mutant character in the story is Kouta, who ends up becoming increasingly involved with these dicloniuses, as they seek refuge from the scientists.
The main diclonius character is Lucy/Nyuu, a killer whose alter ego is a hapless and very cute child whose vocabulary and intelligence are quite limited.
After a large amount of choice occurrences, the lives of these two characters become inexplicably intertwined.
The series Elfen Lied has been categorized as 'Mature' 'Ecchi' 'Adult' , therefore may contain intense violence, blood/gore, sexual content and/or strong language that may not be appropriate for underage viewers thus is blocked for their protection.