Nemu Kurotsuchi (涅 ネム, Kurotsuchi Nemu?) is the lieutenant of the 12th Division. She is the artificially created daughter of Mayuri Kurotsuchi, a combination of his research in artificial bodies (義骸, gigai?) and artificial souls (義魂, gikon?). This past has driven her to become rather introverted and passive, preferring to stay silent in her captain's presence. Their relationship is far from the average father-daughter one, as Mayuri does not appear to care much for Nemu's well-being, even using her as bait in combat, and mending her damaged body only when he needs her. Unlike her father, however, she seems to have compassion for others, saving Uryū Ishida's life as thanks when he does not kill Mayuri. Often when she does speak it is in a subdued monotone, and at least one comical instance she mixes up the colloquial usage of the word "cheese!" when taking a picture with the word "butter."
Nemu's body was designed to withstand fatal wounds, though she still suffers the pain brought on by her injuries. Nemu is also immune to Mayuri's many poisons. Despite this, she carries around a variety of antidotes to be used as she sees fit. She also holds various poisons and potions derived from Mayuri's research in her own body, making her highly dangerous to those who would eat her or attack her internally. In addition to having superhuman strength, she is also capable of boring through obstacles by rotating an arm at high speeds with the hand functioning as a drill-bit. Nemu does not normally carry a zanpakutō, but she is shown to have one in an illustration in the artbook "All Color but the Black". Her Zanpakutō takes the form of what appears to be a thin katana.
She is voiced by Rie Kugimiya in the Japanese version and by Megan Hollingshead in the English dub.
Read more about this topic: List Of Soul Reapers In Bleach, Soul Reaper Characters, Twelfth Division