In the start of this chapter, the uncle muttering the wind is nice, i’m counting on you too today...
Is it possible that uncle never actually erase his past trauma ?
I’m counting in you too today <- this is does not make any sense, uncle never had comrades in isekai world, what the heck he is talking about....
Unless ofc.... all your fuckin damn theory is right... all his comrades are fallen and he is forced to go back with his heart shattered.