“That’s an urgent mission.”

Kaori tells me when I tell her that I need to go buy a swimsuit this Saturday. I get that swim class is next week, but I have no idea why she’d say that it’s an urgent mission.

“Shizuka invited Yuki to come along with us, are you okay with that?”

Although Yuki did say he would come, he might view it as being forced to by Shizuka. He only reluctantly agreed to come after he was told he was going to, ‘Keep strange men away from us,’ so he may think that he’s needed.