Rockman X

ロックマンエックス

Dr. Thomas Light created X as the upgraded version of his most powerful creation, the original RockMan. He was designed to think, feel, and make his own decisions. Dr. Light sealed him away in an attempt to help him distinguish right from wrong, believing that mankind was not ready to accept such an advanced robot.
Centuries later, Dr. Cain discovered him and used his outstanding design to build an entire race of robots capable of thinking for themselves: the Reploids.
However, these robots were defective and began breaking the Laws of Robotics. This kind of "evil" Reploids were labeled Irregulars (or Mavericks), and soon a group of Irregular Hunters was gathered to maintain peace.
X joined the Irregular Hunters on his own, since he felt responsible for letting Dr. Cain create the defective Reploids.