An energetic and somewhat dim-witted high school girl who befriends Sonya despite constantly being injured by her. Yasuna is typically portrayed as a kind and caring individual. She is the self-proclaimed "best friend" of Sonya, and is usually seen hanging out with her, she's also Friends with Agiri Goshiki who's a ninja, Yasuna frequently gets on Sonya's nerves, usually from Yasuna teasing her, which often results in Sonya using violence on her. In spite of these beatings, Yasuna never holds this against her, nor does she attempt to retaliate. Yasuna has been shown to be able to survive surprisingly lethal situations throughout the series. Even when it looks like she'll be killed, the next chapter/episode will have her show up just fine like nothing happened, giving the impression that she may have some sort of healing factor, or even be immortal. Though since the series is a comedy, Yasuna's "immortality" might just be for humor than anything. Yasuna has also been shown to have terrible spending habits, often buying things on impulse based on what she sees on TV, as well as the internet.
