Well, Setsuna didn't consider Kyouya close, but he was someone Setsuna didn't dislike, which was always good, or at least good enough. As for Duck, he'd call her a friend, but perhaps not close, yet. Still, she gave him the same "little" sister vibes that Kurai and Rukia did, and Pearl had.

"A movie night sounds awesome. Just say whenever you guys are ready, and I'll make sure to prepare the theatre. I'll ever get us food," Setsuna offered. As for ballet...he blinked a bit. "Well, I'm not into all of that stuff, but I'd go watch you for curiosity." A pause, then Setsuna looked at Kyouya, "What kind of get together? Just a random party thing?"