Information Exchange Ability

This information exchange ability is the ability of Sigma.

Description
Upon contact with another person, the ability allows Sigma to exchange the information he wishes to know most with the information the other person wishes to know most.

As a side effect, the person that Sigma exchanges information with may experience momentary loss of consciousness as a result of a possible information influx. For example, Atsushi Nakajima once collapsed after Sigma apparently used his ability on him to transfer information about the page's location being held by the Decay of Angels. Ango Sakaguchi conjectured that his brain might have temporarily surrendered consciousness to sort the large amount of information, a similar experience that his own ability also caused before.

Appearances
{{Ability Appearance
 * Chapters=

Decay of Angels Arc
}}
 * Chapter 58 - Sunday Tragedy, Part 2 (mentioned)
 * Chapter 76 - Skyfall, Part 3 (implied)
 * Chapter 79 - To Threaten God, Part 2 (flashback; implied)