Yahira was a smart woman. But in terms of character, she was dull. In Sumatra Chronicles, she was lacklustre in character but was Resha's staunchest supporter. She had his back in every situation, actively working out solutions on his behalf.
She was gifted in the way of fighting, similar to Resha, and was someone who managed to injure an endgame Boar King, something even Resha failed to do so, despite the various Major Treasures at his disposal.
She never argued with Resha, silently accepting whatever he said, even if they were foolish. Rather, even if something he attempted was foolish, instead of berating him for it, she would rather use all her means to make it work somehow. That was her characteristic trait.
Virala was damn into her because he liked that aspect about her. Not only was she a silent supporter, but she also placed herself in the submissive position of a relationship and devoted her entire being towards her beloved.