[ Despite being brash and abrasive on a good day, Toph has an innate patience and stillness to her when she wants to exercise it that comes out now as she listens intently to Vincent's explanation. Immediately, she realizes the complications in Sephiroth himself not even being aware it's possible. She can't imagine not knowing who her parents are, but she knows how important they are. She realizes she can't be the one to tell him, which is fine, because she's focused on Vincent.

This is also new information about him being experimented on, and Vincent's regret about being unable to protect his mother. It feels like this came out of nowhere to her, like she'd been bopping around a silly Halloween festival getting a dumb fortune told and playing kids' games and then here's Vincent dropping horrible tragedy after tragedy on her in blithe, cool sentences.

She has to pick something to focus on. So she does, sputtering. ]

Okay -- okay, wait. There's a lot going on here, you're right, [ it sure is complicated! ] but whether you'd be a worthy parent isn't part of the conversation.

[ Toph delivers this fiercely, resolutely, like she's daring Vincent to argue with her. She doesn't need to divert this conversation with a whole thing about her own parents, but she's adamantly certain Vincent doesn't need to worry in that regard. ]

Let's get out of here -- I think I need the whole story.