All that Sonia says only leads to more confusion, and just as well, more annoyance. First of all, Togami has no idea what she means by her other classmate; truly he is one of a kind, absolute perfection, and the thought of anyone even coming close to him is laughable. Though he did not know everyone in the class above his, as far as he was concerned none of them resembled him in any way, shape, or form – perhaps her memory truly was failing her then, possibly some disorientation from arriving here in Spirale (not that he had had any, of course).
However, as mildly insulting as it may be to him, what she says next is what he finds himself dwelling on: something called the Future Foundation, something he’s never heard of before, something he was…apparently a member of. Now, admittedly, he is the one who is disoriented; he has to remember all that Mukuro has told him, about how their world had descended into chaos not too long after he had disappeared. This organization must have resulted from that, then – and if he was a member, then surely he – or rather, the other him, the one that was and was not Byakuya Togami – must have survived Enoshima’s twisted killing game. This realization causes him to internally sigh in relief; though the person Sonia referred to was not him – he refused to acknowledge this other as such – it was comforting to know that no matter what existence he may have, Byakuya Togami was not dead. In this way, he has some closure, though again he never has nor never will experience those terrifying events; at first he makes a mental note to tell Mukuro this, and yet…perhaps he shouldn’t, as he’s not sure how she would feel knowing she hadn’t made it and he had. Now isn’t the time to worry about that, though…
“I have no idea. Quite frankly, I don’t know what this ‘Future Foundation’ even is. I assume it was formed after the mutual killing, then?” By way of explanation, he adds, “I’m from a time before all that, so all I know I’ve heard from Mukuro Ikusaba, and she never said anything about a ‘Future Foundation.’ Regardless, this island is rather strange, but from what she’s told me I’m sure we’re much better off here than in our world.”
Not only Byakuya got really confused by this encounter, Sonia did as well. Who even is this, if he’s not aware of what ‘Future Foundation’ is... How very confusing, did she mistaken him again? No, that couldn’t possibly be. He definitely was the Byakuya Togami she saw back then next to Makoto Naegi and the others.
“Excuse me, but now you are the one not making any sense to me. You are fom a time before that? My, so what you are trying to say is, that even before we reached this place, we were from two different univeres? That truly is quite confusing, but I do think I slowly am starting to understand...” Even though it gave her a little headache. There were so many unsolved mysteries, not only about their pasts, but about the Island they live in now, too. However, the best thing to do, was not seeking an answer to each one of these questions, at least for now.
“M-Mukuro Ikusaba is here as well?” Frankly, Sonia did only hear from her before, and never met her directly. Or at least she wouldn’t remember if she did. But she was the twin sister of Junko Enoshima herself, and alone that was enough, to let her feel rather uncalm about that piece of information. “You could talk to her? Normally? Was she not also part of the Ultimate Despair? My apologies if I ask too many questions at once, Togami-kun. But do you think we are safe here...?” The last time Sonia stranded on an island without knowing how she got there, a killing game started shortly after. And even though she doubted this would be the case here as well, there unfortunately always was the possibility.