The way she says it makes it sound just so normal, and Shindou in fact takes it as something relatively ordinary. It could just be the way she worded it.

"Iaido? That's a pretty impressive choice of activity too." Raimon Junior High had a kendo club, but this was his first time meeting someone who did iaido. At least he's assuming it's iaido. Unless she was a student from Sengoku Igajima... but she didn't seem to be from the area at all.

"Do you have anything you like to do with your friends?"