Loved Kyousuke line "Damn it, what kind of flag is this?," quite funny to see him reference that due to the circumstances.
I'm sure your going to be triggering alot more flags with your little sister Kyousuke.
Edit: Btw, this
pic shown at the end of the episode, could it have been drawn by Na-Ga from Key? I think the eyes are a dead giveaway its him but correct me if I'm wrong.