Rishia had been silent in thought for much of the journey. So this is the conclusion she has come to.
I already knew, but Rishia is still chasing after Itsuki.
The other heroes have had some of their comrades captured or killed. But there is no information on Itsuki.
From the beginning, there had been little information circulating about him anyways.
He tried to act like a hero and work under the radar.