Nana (ナナ, Nana) is a supporting character from the Mega Man X series. She is featured in Mega Man X: Command Mission where she serves as Alia's counterpart Navigator in the game, assisting the Resistance faction of Giga Gity with her abilities as a Navigator, Organizer and Computer Specialist against the intentions of Epsilon's Rebellion movement.
When the Rebellion attacked the Central Tower area of Giga City, Nana was abducted by Epsilon's followers. She was brought to a POW camp led by the cruel Silver Horn to serve as an operator of the facility, while being a hostage herself. She was being imprisoned inside a computer chair, from which she was forced to regulate and watch the installation. Upon Chief R's request, X and Spider infiltrated the camp and (with the help of Massimo) freed Nana. She was then brought back to the main isle of Giga City, taking up the duty of navigation. She was responsible for the operation of teleportation to the different mission locations, as well as maintaining contact with Colonel Redips, X's superior officer during the Giga Gity affair.
Upon the destruction of Epsilon by the hands of X, Zero and Axl, assisted by Marino, Massimo and Cinnamon and the preservation of the Supra Force Metal, Nana was sad about X's departure, fearing she might never see him again. She was with them when their pickup arrived, which turned out to be an ambush by Redips' followers, who had been planning on using Epsilon as a scapegoat all along. During the ambush, Chief R was killed and the group scattered. Nana wasn't seen again until the end of the game, sitting somewhere outside Giga City, waiting to hear from her friends when she saw the explosion of the Supra Force Metal in space.