Mu Koshō

Mu Koshō (無故障, Failure Naught), simply referred to as Mu is a Modified Human (改造人間 Kaizō Ningen), under the ownership of the vampire Alucard. Originally an ordinary human, Mu was unique in that she possessed the capacity to use magic, but the inability to manipulate it into spells. The girl spent many unsuccessful years trying to overcome this handicap, to no avail, before seeking out Alucard, who willingly modified the girl to make her compatible with Black Lacrima. Due to her unique style of fighting, she would come to be called the Wordless Mage (言葉抜きの魔道士 Kotonuki no Madōshi; lit. Mage Without Words).