Both:
>Proceed to Eientei, Youmu can't go at full speed of course as to not let the others behind.
I won't put Youmu dialogue for now, since Miko hasn't finished delivering her arguments, and i won't put Miko dialogue either because i'm not following Kilga's train of thought exactly and not being used to Miko, but i'd probably say something like although Seiga isn't part of her entourage anymore, she's still her follower of sorts, thus still being Miko's responsibility.