Is what Itsuki said, but, as the other heroes, including me, said as much so he cannot really refute anything.
“On to Ren. I sensed a large disconnection in your comrades. When they introduced themselves, they asked, ‘So where do you want us to go train’.” (Naofumi)
“That’s right. At first I did not know what they were talking about. Can you really call those comrades?” (Itsuki)