Tekka hada', or simply 'tekka' represents a character of a woman who fights at the drop of a hat, but who is frank and generous, and doesn't hold a grudge against anybody.
鉄火肌とは、たんに鉄火ともいい、喧嘩っ早いが気風（きっぷ）が良くて、根に持たない性格さす。