She is Takezou's classmate and joins the koto music club after hearing their first performance. She has knowledge of koto due to the influence of her grandmother. She becomes the koto music club's vice-president.

Towa Higurashi is a half-demon who lives in the Reiwa era. She is Sesshoumaru's first daughter and Setsuna's older twin sister. She was somehow transported to the modern era through the power of a Tree of Ages in the Bone-Eater's Well when she was just 4 years old.

A former Kara Inner, the eighth modified by Amado Sanzu. When Amado's research on the human heart hit a dead end, he augmented Ouga's brain so she could assist him. When she attempted to research Jigen's heart, he considered it treason, destroying part of her brain before she could flee. The damage caused her to no longer have a will to live, and her body began to break down shortly after. Having learned from Jigen's example of the connection between desires and one's life-force, she began abducting several people, placing them under genjutsu experiments that would force them to act on their desire to survive, secretly taking part in them in hopes that witnessing it would restore hers. The scale of her abductions drew the attention of the Five Great Countries' Joint Investigation Team, who began to investigate.

Mahiru Seki is a former middle school student and a childhood friend of [Kou Yamori](https://anilist.co/character/168866/Kou-Yamori) and [Akira Asai](https://anilist.co/character/175663/Akira-Asai).

~!Died with [Kiku Hoshimi](https://anilist.co/character/269128/Kiku-Hoshimi) at the sunrise after she turned him into a vampire!~

Loretta is from the House Kuguret, a family well known for their history of military service.

[Kazuki's](https://anilist.co/character/163252/) younger sister. The eldest daughter of the Shindou family.

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Sara Matsumoto

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