He looks up again, at her first comment, silently flicking his keenly attentive eyes over all of the woman poised in front of him. Picking up whatever nuances of expression within her body language that might feed his sharp intuition. Sephiroth soon looks away again, unable to decide if it's even correct or appropriate to be looking at her in such a way or not.

This was the woman who had given him up, almost as soon as he was conceived. Who he hadn't known about, at all, for so long and now-

It didn't take much for Sephiroth to get lost with words but when he couldn't fathom how he really felt presented with her directly like this, it made it even harder. Again, he eyed her carefully as she attempted to draw another question; shouldn't he be the one asking questions?

"I know...enough. Through Vincent. Through...other means here."

The slight shake to a breath that Sephiroth took in could easily be disguised as a reasonable reaction to a twinge in his injured tendon.

"More than I would have known...than I will ever know when it comes the time to return to Gaia."