Along with Daredevil, Netflix announced a crop of other Marvel heroes would form a part of the 'Defenders' series in 2019 - one being the Immortal Iron Fist. On top of multiple references to Steel Serpent (one of Danny Rand's adversaries), it is heavily implied that Gao may hail from the mystical city of K'un Lun - an area home to the Immortal Weapons. This would explain why she was able to deflect Matt's attacks and even throw him across the room too. Gao was already an interesting and elusive character until this revelation, but the unexpectedness of the K'un Lun comparison elevates her to more than just a simple Hell's Kitchen crime boss. Expect this particular drug-trafficker to have a recurring role in the other Netflix shows.