Yunaka is a sprightly young woman who talks with rather strange, eccentric phrases that very few understand. She is also skilled in impressions. Despite her bright personality, in battle, she is serious and deadly, with her speech becoming much more grim. This is due to her past as a trained assassin, a life she wishes to leave behind. She is conscientious in maintaining her positive personality in order to hide this past, panicking whenever someone pries into it or she forgets to put it on.
