User blog comment:Rtys8/Wearing out again...../@comment-4738138-20140821152723/@comment-4738138-20140822145403

Indeed. In resona forma, you can see that Shiori doesn't survive in the others routes, and can only live if Kakeru chooses her as Mother Johanna said that the reason why she took an interest in her is that she became a human girl, and no more a doll. The same for Kukuri as Kakeru can remember her or not. I think the routes are canon too, as there are multiple worlds there. But I maintain that Shiori route is the true ending (even if the others routes are canon) for many reasons: Kukuri survives in this route, where she didn't in others, Shiori returns to Index and that's how Johanna can see the multiple worlds with her Fragment inside her body. And as Resona forma prologue happens in Index, that's a possibility that Shiori route follows it. The only non-canon route is Lisette story, which is a "what if" story. Before story is the only route which the true story follows but the rest  depends of the player.