Matsuko Kadowaki is a major antagonist in Girl Gun Lady. She is an old friend of Koharu's who used to build models with her before she mysteriously lost interest. She later joins the Girl Gun Fight as a player not long after Koharu and becomes the second-in-command of Bravo Tango.
It is later revealed that Matsuko is really a Lady Commander who participated in a previous Girl Gun Fight and won, becoming a human in the real world while having her team members erased as a result.
She is portrayed by Anna Ishii.