Jane

From Tekkenpedia

Jane is a young girl who was orphaned in a battlezone after the Russian government attacked with a platoon of Jack robots. The unit Jack 2 overcame his programming to protect her, but he was destroyed in the process. Over the past twenty years, Jane has dedicated her life to finding a way to resurrect her beloved Jack, using the funding of the Mishima Zaibatsu. But after she was attacked by the Tekken Force and saved by Gun Jack, Jane now works for G Corporation. While working for G Corporation, she developed Jack 4 and its successor, Jack 5.