It's a while before Yusuke answers, partly because he's lost in what he's currently working on and partly because he's considering the question pretty closely.

"Perhaps both, for all I don't want to go down that road of possibility if we don't have to. I got the blank book on my last visit to my mother, just after the dreams started." If not for that positively giant sword, he might well be wondering if whatever's going on would leave him less fit for battle in the long run.

But he's pretty sure that won't be happening, at least.

"Has... anything else unusual happened to you, since the attack?"