I thought it was just gonna be a pre recorded VR world, which he has no control, or interactivity with, but instead it's an ultra impossibly high tech virtual world, that reacts like actual people to what you do, and knows you're there? What?
I can't even tell what the plot twist is going to be anymore. Either this isn't merely VR, and it's magic time travel, and he's gonna have a hand in his own family's demise, or he was a little psycho all along, and molded all the other kids into being psychos too with his ultra psychosis wave.