Himegami Aisa

Aisa Himegami (姫神 秋沙) is a recurring character in the Toaru Majutsu no Index. She is a person who carries with her "Deep Blood", an ability which attracts and harms vampires.

Profile
Known as "Deep Blood" and has the ability to kill vampires when they approach her, resulting in many of her friends dying. This prompts her to go to Academy City, hoping to find a way to get rid of her powers, until she meets the alchemist Aureolus Izzard. She cooperates with him because he told her that her blood can be used to save the life of a person he cared for (Index) in return for helping her get rid of her powers. When Aureolus learns Index's life was already saved by Touma and tries to kill him, Aisa attempts to defend Touma, which prompts Aureolus to use his alchemy to try to kill her as she was now useless to him. Her life was saved by Touma who dispelled the spell on her with his right hand. When she asks Touma about why he saved her, he told her that he did not have a reason to rescue her. After the incident, she lives with Touma and Index but later moves to Komoe's apartment and wears a magical power-blocking cross, which according to Index is the bare minimum of what makes up a 'Walking Church' barrier. She subsequently becomes a student at Touma's school and is in his class.

According to the novels Himegami's Dream isn't to live a normal life, but to become a 'magician' like those in fairy tales who can even disregard the laws of nature, to save people that have been abandoned. She has this dream because her village was all turned into vampires by a passing vampire that was afraid of her ability, and decided to turn everyone into vampires to kill Himegami, but in the end they, the intruding vampire, her friends, her parents, all were killed by the ability Deep Blood. At the start of vol.2, she joined Aureolus for the short term goal of sealing her power so she can't kill vampires, and afterwards to continue the dream of becoming a magician. After vol.2, she was content with staying with Touma as it seemed to her if she stays with him she'll achieve her dream somehow, in addition to her ability being sealed by the 'Walking Church' cross-pendant Necessarius gave her.

Personality
A quiet young girl with a rather blunt personality, generally soft-spoken and sometimes shy. She can be as gluttonous as Index, which is shown when she was trying to buy out all hamburgers at one restaurant. Because of her ability it has made her miserable because her friends and family were killed by her ability. Ever since Touma saved her life, Aisa started to have feelings for him, which is ironic as she once joked that Touma's life was like a dating sim.

She also has a kind and considerate side, shown during the Daihasei Festival after she was recovering from the near-fatal injury caused by Oriana Thompson, she once thought about leaving Touma and everyone else since she seems to only be a burden to Touma. She thought she doesn't have any special talents that can help Touma, nor is she the kind of person that can help others just by her presence like Index. Though Index quickly told her that's not true, as Himegami is everyone's friend and a valuable person to everyone that's worth saving.

Abilities

 * Deep Blood: Her blood attracts Vampires, drawing them in against their will mostly. Upon drinking it they automatically turn to ash.


 * Stun Baton: She has one and calls it her "wand".


 * First Aid: She has been trained in first aid.