The Data Pheromone System (
It is a system designed to send chemical signals to a receiver without the need of electrical circuits. This achieved via the use of pheromones, similar with ants using pheromones when finding food, to let their companions know of its location. It is unknown how the receiver of the transmission receives the pheremone signal, though it can be assumed that it retains not having any eletrical circuitry as well.
Shinyaku Toaru Majutsu no IndexEdit
Baggage City ArcEdit
- Main article: Baggage City Arc
Though not confirmed to have been used during the arc, Kumokawa Maria suspects that the system has been implanted on her clothes, that would allow Kihara Kagun, the person she is looking for in Baggage City, is using it in order to stop her from finding him.