Mira turned slightly red in the face when Reiko corrected her. She didn't see anything wrong with addressing a cute classmate as chan, but maybe she was missing something. Just then, she heard the navy-haired girl sitting with Reiko mumble something before introducing herself. Mira blinked at the girl curiously, studying her features. Immediately she could tell she was taller than most of the other students at Lilium. 

She smiled at how cool the girl was being, and then nodded. "I... think we have each other in P.E, Junko-chan. I hope we can become fast friends..." 

Turning to look at Reiko, who seemed to be enjoying her curry lunch. She bit the inside of her cheek, studying her only for a second. "Well, Reiko-chan..." She paused after saying the chan part, pressing her lips together in thought. No point in correcting herself, it was too late. "I think it's okay to call you chan, because you're so cute and it would be weird to call you san. Plus, we may not be good friends yet, but you saw me changing and that would make us more familiar to each other than most people..." 

A light pink stained her cheeks, realizing what she just said.