Himegami Aisa (姫神 秋沙 Himegami Aisa) is a recurring character in the Toaru Majutsu no Index. She is a Gemstone and possesses the ability "Deep Blood," which attracts and kills vampires.

Aisa looks like a normal teenage girl. She has long, straight, black hair, and is often seen wearing her miko outfit. After the events of the một giây volume, she begins wearing a vượt qua, cross chuỗi hạt, chuỗi hạt cườm được trao to her bởi Necessarius so ma cà rồng will not be attracted to her blood.

She is a quiet, young girl with a rather blunt personality, generally soft-spoken and sometimes shy. She can be as gluttonous as Index, which...

Yomikawa Aiho (黄泉川 愛穂 Yomikawa Aiho) is a P.E. teacher at A Certain High School, and are good Những người bạn with fellow teacher, Tsukuyomi Komoe. Also a member of Anti-Skill, she cares for the well-being of children even if they are criminals, and absolutely believes that she will not use a weapon on children.
She is the current legal guardian of Accelerator and Last Order.

She is a tall woman that has glamorous proportions, and is always seen with a green jersey, which hugs tightly on her large bust. Her long hair is tied into a ponytail, making her look careless, but also gives her an intriguing...

Tsuchimikado Motoharu (土御門 元春 Tsuchimikado Motoharu) is a recurring character in the Toaru Majutsu no Index series. Kamijou Touma's next-door neighbor, he is a student of A Certain High School's Class 1-7 alongside Touma and Aogami Pierce. The three of them are called the Three Idiots—Delta Force.
Initially referred to off-handedly as Touma's other classmate and neighbor (though in the anime is shown earlier as a recurring side character), he is later properly introduced during the Angel Fall Arc, as a spy for several organizations, most prominently Academy City and Necessarius,...

Fukiyose Seiri (吹寄 制理 Fukiyose Seiri) is Touma's classmate, Aisa's best friend, and often takes up roles of the class representative even though Aogami is the class representative.

Seiri is a young girl in her mid-teens with a slender, yet solid build who has been described as rather tall for her age. Like Kazakiri Hyouka, she is considerably well-endowed for her age and has been noted to have a big forehead, furthermore she usually selects hairstyles which indirectly emphasize the size of her forehead to the point were one of her looks is called "Forehead deluxe". She has been noted...