@AHunter Reading this I noticed that all characters here have notable leaps of logic and generally irrational behaviour. It's not to the point of being openly strange, but still slightly unsettling. Sorawo didn't even question them on matters related to Satsuki, when their obsession with her is definitely not normal, to the point of disregarding own safety and logic to find her. But okay, that could be taken as part of Sorawo's disinterest in others and lack of empathy. Then, they make some unfounded assumptions about otherworld and its phenomena, like with the phone calls, they somehow were confident that it was them who spoke nonsense during the call, not that the signal was corrupted or anything. And that's not the only thing they were weirdly confident about, I'm just too lazy to reread it all again and point out exact moments. Kozakura, who is supposed to be one with scientific approach also disregards many possibilities in favour of her own hypothesa. You would expect them to have more systematic approach if they truly want to find missing Satsuki, but instead they just wander blindly, without much efforts to understand what's going on.
Next is, I understand Kozakura feeling scared and wronged because Sorawo left her alone, but what's with complaints about shooting something that looked like Satsuki and was obviously trying to harm Toriko. Heck, even if that was real Satsuki, the right choice would be to shoot first, as it was visibly dangerous.
All in all, i feel like it's either some kind of underlying plot and something heavily influences characters reasoning skills or they are just dumb. I believe it's former, and that means Sorawo is only, even though not completely, sane(if we can call her that) person.
@Madcat6204 I think government already more or less knows about otherside. And Toriko's parents both were connected with military, so she does sympathize with soldiers.