I don't think it has anything to do with Clannad (other than the first panel hinting at her path being removed from the game because it was boring). Just that the ribbon magically makes her behave like Sayuri too.
Ahaha...Magical?!Yukine is cute, but I get the feeling that she can't quite take on the heroine's role...Now that you mention it, that might be true.And so I tried putting a ribbon on her.Ooh! That's kinda heroine-like!Feels like the daughter of a good family, huh?Try saying something, Yukine-chan.
