RyuZU (リューズ, Ryūzu) is the 1st unit of the Initial Y-Series. Currently she is the self-proclaimed "slave" of Naoto. Like her code name implies, she is an automata made to serve her master. Since she does not have a offensive language filter installed within her, she tends to be very rude to others, although she is oblivious to this. Unlike most automata she possesses her own free will, and always wants to stay by her master's side.
Clockwork Planet
Legend tells that when the Earth was destroyed, the great clockmaker Y made a replacement from cogs and gears. Naoto Miura is a young boy who aspires to be a great clockmaker. However, despite his unique talent—sensitive hearing that can immediately understand clockwork mechanics from noise alone—he has made little progress. But this changes when a coffin falls from the sky into his apartment, revealing RyuZU, a female automaton forged by Y himself. News of RyuZU's arrival brings Marie Bell Breguet, the gifted heir of a distinguished line of clockmakers, and her cyborg bodyguard Vainney Halter into Naoto's life as well. When she and Naoto both become embroiled in an action-packed battle for their lives, they discover an uncomfortable truth: the clockwork planet that humanity has lived on for over a millennium is beginning to break down—a secret that many people will kill to protect. [Written by MAL Rewrite]
