Jane is an inventor and a military contractor from the Kingdom of Ev.
After Frank admits he caused the accident on purpose, she apparently goes to Ev and helps rebuild it after the flood caused by the Beast Forever.
Oz in 2016
She helped Jack when he was on the brink of death, by substituting several of his body parts with mechanical ones. She changed his heart, left arm and both legs for their metal counterparts.
Jane is employed by the royal family of Ev and makes masks for Princes Langwidere.