When Kojou were to notice her reaction and asked her 'why' she tends to answer that 'she's his observer', it is apparently for to convince herself more than Kojou himself. Yukina is also protective of the people close to her, even if they are capable of protecting themselves. Despite being jealous a couple of times whenever Kojou is around other girls, she never dwells bitterness and hatred towards the other girls Kojou had been interested in, and even on most occasions befriends them, as seen with her interactions with Kanon Kanase and Astarte. She soon developed special feelings for Kojou which is often hinted through her facial expressions of how upset she is whenever Kojou becomes interested or makes the other girls his blood mate. Her goal is to observe Kojou and defeat anyone who she deems a threat. She is also can be noted as quite a kind and caring person. Since she was brought up in the Lion King Organization as a soldier, her views on the outside world are different like when she went shopping with Kojou Akatsuki, she thought a golf club was a weapon and a pressure cleaner was a flamethrower.

Yukina's personality is accentuated by a peculiar naivety where she generally appears to be a sweet, soft spoken and unassuming girl, but however, a far cry from being a damsel in distress as she is an extremely good fighter, both with hand to hand combat and with lance wielding.

Blood rush ryona game scenes