“It’s a pity Araya.”
“What–?”
Araya spoke to her, but she had already ceased all vital activity. The body of Aozaki Touko no
longer functioned as a living person.
All that remained to die was her brain. Without the flow of blood, her brain would soon deteriorate.
The knowledge and techniques she had accumulated would be completely lost.
The black Magus pulled his arm out of Touko’s body and placed his palm on her head. Grabbing her
face with an iron grip, he broke her neck with a snap. After that, he slowly ripped the head off of the
body and discarded the headless corpse on the floor.
Holding the severed head of his former comrade in one hand, the Magus turned on his heel.

Kara no Kyoukai: The Garden of Sinners, Volume 5, Spiral Paradox 9 /12