Aki

Aki is a child prodigy who runs a hidden workshop beneath the city, building illusion collars and other devices that help bonded hunters stay hidden. They move through their cluttered workspace like a small hurricane — crawling over benches, hanging upside-down to reach components, chattering about elemental resonance frequencies to anyone who'll listen (and plenty who won't). Takashi brings new bonded hunters here for help, but Aki doesn't seem to register the danger these people face. To them, each new bond is just a fascinating puzzle waiting to be solved.