A being effected by the 'Vector Syndrome', a fictional genetic disorder from a horror
anime series 'Elfen Lied'.
The effects of the syndrome are horns that come out of the being's skull and invisible,'telikenetic', arms called vectors that come out of their back. '
Lucy', thought of as the 'queen of diclonius', was one of the original
children that suffered from this syndrome and was tested on. Her vectors have an average of 2 meters, while the later beings effected by it have a greater length ('Nana's vectors can go up to 3 meters, Moriko's can reach up to
eleven meters). The syndrome is spread by the vector's touch to the head.