"You want to know everything about her? Are you sure about this?" Bro, this is a stupid-ass fucking question. Even if knowing the truth about her is dangerous somehow, Rei doesn't have any info to go on, so there's just no way in hell he'd ever answer "no" to this question. If you phrased it like "If you find out the truth, your life will be in grave danger, but if you don't, you'll be relatively safe, are you sure you wanna know?", then maybe he could say no, but if you don't tell him ANYTHING WHATSOEVER, then his only choice is to find out more so he can make informed decisions, right? Man, both the white suit guy and the wheelchair woman are so freaking annoying, always going like "kukuku, we know everything, you don't know anything lol, sucks to be you sucker". Like, get to the point and stop gloating already.