"Yumi." Kat nodded to her. When the masked girl started to walk away, Kat followed, and, always being the social beetle, tried to continue the conversation. "So," She addressed Yumi, "What do you do? Generally, I mix chemicals and experiment with various solutions. My boss... he never comes out of his dark household, so I pay a visit and give him the solution so he can do whatever he wants with it."