Data 7

Cyber 29 was part of the Cyber Series created by Dr. Von Reichter. As a child, his best friend was Cybersix. One day, Cyber 29 and his older sister (Cybersix) were out playing. He went to the edge of a cliff to pick a flower for her. As he handed it to her, the cliff edge suddenly cracked and collapsed, taking Cyber 29 with it. Cyber 29 died, but Von Reichter preserved his brain for later use.
That use came when Dr. Von Reichter created his Data Series. Cyber 29's brain was placed in the body of a black panther and named Data 7. Data 7's mission was to find and kill Cybersix. While on his mission, his memory returned, and Data 7 remembered that Cybersix was not his enemy but his sister, whom he loved. So, Data 7 rebelled against Von Reichter and joined Cybersix to stop him.