Josephine "Joe" Glant is the daughter of Theodore H. Glant, owner of Glant Corp, which controls the market completely in terms of clean energy or anything related to it. After her father and his wife go missing on a boating accident, and are later confirmed dead, Joe must take over the company- something she was ready to do for many years, and now her asshole of a "father" can no longer hold her back.
After partnering Glant Corp with Stark Industries, and joining parts of their R&D departments, Joe begins to work more with Tony Stark, and gets a peak at the family he created for himself. Not that she thinks she could every be part of it. Honestly, she just wishes that Tony would stop trying to get her sober. So what if she snorts cocaine while she's in her lab? She still gets the work done.