Gourry knew very little about the mysterious woman who wore almost as little as Nagha did. However, he assumed from her painstaking work with kopiis that, at the very least, she could be a good cook. She even liked him. He felt sure of that. After all, she had posters with his face on them put up so that he would come to visit her and had people appear to bring him to her. In fact, hadn't she even just demanded his sword of light?
Sure, Eris talked in a condescending manner towards him, and seemed not only violent but potentially unstable, but, then again, Lina did the same, and they'd gotten along pretty well so far. And Eris was even taller and bustier than Lina. What a girl.
Eris, for her part, found Gourry cute and remarkably easy to control. It would be nice, for once, to have someone who listened to her without her having to use little red stones to control them. Besides, Gourry, with his sword of light, tremendous speed and strength, and unquestioning manner might well make a useful member of her team. And, oh, that golden hair...
However, despite the obvious compatibility of the two, the kopii Rezo guessed, from their furtive glances, that something was happening between them. The jealous kopii felt that he had no recourse but to kill Eris to ensure that Gourry was his.