Kosame is a strict and professional woman who (aside from very few occasions) always wears her uniform and is always stoic and alert. However, Kosame is also an extremely tough lesbian that after fighting Kirie Kojima, Kosame became attracted to her and eventually fell in love with her. However, this love borders on sick obsession and Kosame has proven time and time again that she has no problem using her many abilities to seduce Kirie whether she wants to or not. She has even kissed, groped and attempted to have sexual relations with Kirie against her will.