初瀨伊綱 (初瀬 いずな, Hatsuse Izuna)是一名曾經作為代表與人類種進行過競賽的獸人種女孩，在空和白統合艾爾奇亞聯邦後，巫女指派她跟隨空白並向他們學習。 空和白十分喜歡像撫摸寵物一樣撫摸她(尤其是尾巴)，這導致她的祖父十分嫉妒。史蒂芬妮發現其實伊綱與空白有很多相似之處，例如不通世俗、傲慢無禮、耍小聰明以及擅長遊戲。
外貌
與其他種類相似，伊綱具有動物和人類組合的特徵——她有狐狸般的耳朵和蓬鬆的尾巴、深紫色的頭髮和栗色的眼睛（輕小說中為黑色頭髮和黑色眼睛）。她的瞳孔垂直開衩，類似於貓。
當伊綱使用「血壞」能力時，她的尾巴會膨脹變大，而她身上的所有皮毛都會變紅，額頭上會出現紅色的印記。
人格
She is adored by Sora and Shiro for being extremely cute, and they love petting her fur. Likewise, Izuna seems to share the same fondness towards them and enjoys being petted. She even mentions once that she prefers the siblings' petting techniques over her grandfather, Hatsuse Ino. The younger trio would develop a sibling-like tie. She is still learning the Imanity language and has a habit of saying "Desu" (please/thank you in dubbed anime) after everything in an attempt to make it sound more polite.
She mostly exhibits an innocent personality pertaining to her age yet is very competent at playing games to the point of representing the Werebeasts in national games against other races. In the English translated light novels and anime, she has a habit of unknowingly cursing without actually knowing what the words mean.
Before meeting Shiro and Sora, she never had fun in games, as she was trained to win, not to seek enjoyment.
能力
She possesses all the incredible physical abilities found in all werebeasts as well as the rare "kekkai" ability (aka 'Blood Destruction') found in a select few werebeast individuals (although she is only able to remain in that form for only a few seconds before she risks death).
She has the ability to learn at an amazing rate if what she is learning is game-related as in the case of learning to read the Imanity language from a game book overnight while Stephanie slept (still limited in speaking the language however).
弱點
Despite being considered "mature" among the Werebeasts at the age of eight, she is still naive in adult-related subjects.
瑣事
- It was revealed that among Izuna's numerous sibings and relatives (Offsprings of her grandfather and 30 "grandmothers".), Izuna was the only one who inherited Kekkai from Ino.
- She lived with her parents in a residential area, with her grandfather visiting her daily.
圖片冊
en:Hatsuse Izuna es:Izuna Hatsuse fr:Hatsuse Izuna pl:Izuna Hatsuse ru:Изуна Хатсусе