Why is Kanata Age called a traitor in Kuusen Madoushi? The first episode of Kūsen Madōshi Kōhosei no Kyōkan shows Kanata risking his life for his friends. However, when they show him next, they call him a traitor.

The wiki is very unhelpful in this regard.

Why they call him a traitor?
Well... no one knows, not as of the end of episode one, anyway. According to the first episode, while everyone else was escaping, something happened with Kanata. Nothing else was revealed other than that, so it's basically all speculation until they reveal it.