Chihaya first met Yamato at a mixer and became centered on him when he didn't pay attention to her like the other guys since she craves attention. Determined she asked him out in a sneaky way to try and win his heart and almost went as far as almost kissing him but was interrupted by a guy she had done the same to previously. She found that Yamato doesn't take the notion so likely which only made her like him for real.
Vova
