Aoba Wakura

Aoba is a beautiful black-haired young woman and matching eyes with a slender yet well-endowed figure, her hair has two white strands that points to the left.

After being turned into a Humanoid Shuuki, Aoba gained long white hair with two strands that stick up and two others which seems to orbit around her hair and gold slit eyes. Similar to all other Humanoid Shuuki, she is dressed in a black skintight suit with a white overcoat and boots that have black markings.

From her initial appearance as a Shuuki Humanoid, Aoba has shown to have a strong hatred for all the Anti-Demon Corps to the point of attacking their unit members on sight. But, openly shows off a playful and nonchalant mindset even in the midst of attacking the 7th Unit.

Aoba is considered to be a brocon, because of the deep love she has toward her younger brother, Yuuki Wakura, even both mentioning him to other people who she hasn't met and to the point of being capable of sensing that he was inside of Mato.

Despite holding immense animosity toward the Anti-Demon Corps and Onmyou Agency, Aoba doesn't let this personal hatred cloud her reasoning and judge of character. She immediately stopped fighting after Yuuki called out to her, and could distinguish that both the sixth and seventh units of the Anti-Demon Corps were not the same sort she has come to attribute to the Onmyou Agency. She is also quite perceptive in contrast to her childish demeanor, noticing that Tenka held back during her final attack to avoid making Yuuki sad. After realizing that they were people she could genuinely trust, she was happy to cooperate and leave Yuuki with them, thanking Tenka for her help in keeping the Humanoid Shuuki safe.

Aoba is the older sister of Yuuki Wakura, instructing him all about what it means to be a functional man, offering points whenever he passes or puts him into a submission hold. At some point, eight years ago, she found herself caught up in a Mato Disaster, where she ate a Mato Peach, turning into a Humanoid Shuuki. Amid fighting to maintain her humanity, she soon encountered Naon and Koko; at some point, she became the leader of the Hidden Village.

(Source: Mato Seihei no Slave Wiki)