[hinotori]

Originally Posted by DragonXX

Spoiler for novel spoiler:

What is this other world that you will be Exlie to if you touch Tangram and do and if Mikoto and Index die how do they come back or did they die forever. What was Touma like when he was push over the edge? Also do we know who Blue Stalker is?

Spoiler for Spoilers.:

Tangram will send anyone who tried to touch it without permission to random parallel worlds that expand infinite.

Blue Stalker is one of the residents in Virtual-On original world, He intentionally makes Tangram exiled him to the parallel worlds and came into the Index world by chance.

Mikoto, Index and Accel who died by Blue Stalker hand, are brought back by the 'Original Purashina' in the end.