Hiyori Iki

Hiyori is a kind-hearted and brave individual who will go out of her way to help someone in danger, even if she does so at risk to her own safety. This extends not only to her loved ones, but also to strangers. She has a strong moral compass and is usually willing to speak out against others if she feels their actions are wrong, although she has shown herself to be slightly more lenient at times when the matter concerns a friend. She is very perceptive of those around her, able to see good intentions behind others' seemingly cruel words or actions. Despite this, Hiyori can be a bit air-headed or naive; for example, believing she would be fully prepared to be Yukine's caretaker, or being comically concerned that she isn't "wireless" when she learns that her cutting her cord could result in her death. She is also rather easily flustered when confronted with matters of romance. Hiyori is deeply loyal to those she trusts and does not subdue her emotions. Though she wishes to be completely human again, Hiyori has no desire to sever her ties with Yato or Yukine, and refuses to do so several times even though it would be her best chance to return to normal. Despite expecting disapproval from her mother for being unladylike, Hiyori is a huge fan of martial arts. She has a fixation on a martial artist called Touno, who she adores and copies attacks from. She often becomes inspired and act on his words, following his advice of "pave [their] destiny with their own hands".

Hiyori is a young girl of slender build, whose height is 167 cm (5' 6") . She has dark brown hair and brown eyes (magenta in the anime). As a half-ayakashi, a "cord" resembling a cat's tail emerges from her lower back. The cord is colored dark pink in the anime; its coloring in the manga is inconsistent, at times appearing gray, light brown, or bright pink. Hiyori is often seen wearing her middle school uniform, which consists of a short sailor shirt and a knee-length skirt, both lavender in the anime and light gray in the manga. Once she graduates middle school, she is frequently seen wearing both the summer and winter versions of her high school uniform. Her winter high school uniform consists of a light purple blazer, a dark purple pleated skirt, and a black button up shirt with a purple ribbon at the collar. She wears black knee length socks and brown loafer shoes with this outfit. She can sometimes be seen wearing the blazer open with a white sweater vest underneath it. Her summer uniform also has a white sweater vest, along with a short-sleeved blue collared shirt, a dark purple pleated skirt, and the same socks and shoes as her winter uniform. Hiyori changes outfits on occasion, donning a grey trench coat over the uniform and wearing a long pink scarf over her shoulders reaching down to her upper thighs during the first season, which took place in winter, and more summer outfits in the second season. Hiyori Iki (School Uniform).png|Hiyori in her middle school uniform Hiyori with a tail.png|Hiyori in her spirit form