Originally, using her power would cause her to attack anyone she sees in a fit of blood-lust. However, as you progresses your relationship with her, she would learn to control these urges. Unfortunately, she still fears her power, despite being able to fully control it.

Mysterious, Cute, Playful, Fear, Torture 

Urushi is a girl with long lavender hair. She usually wears a school uniform. She has big brown eyes and often puts a large smile on her face. Urushi has no experience with love, so she can't deal with a straightforward person like you. Besides that, she is very short despite of her age and has been quite sad about the fact. But all those worries immediately left as you said that her height adds up to her cuteness. And the viewers agreed. She is also really small and skinny. 