I was about to say, we know the teacher and who she saw in the virtual attraction are the same person because of their bone structure, but we don't know if that is actually friend.
i wonder how sadakiyo is related to all this then. i guess he might be an enemy because his face was in that VR game, but somehow i think his involvement is somewhat murkier. perhaps he's a potential ally?
I think sadakiyo died on Bloody New years. I think he was the dude who fell alongside Fukubei. And i was fucking right! I said that Friend might have had an adult face on a kid body!! Go me!