The outfits worn during the school festival in Episode 9. Io Otonashi and Sakaki Inui dressed in suits Mayoi Katase chose, Mayoi and Hime Haruno dressed as "newlyweds", which was chosen by Sakaki, and Tsumiki Miniwa dressed as a cat mascot. Tsumiki's outfit was sewn by Io, specifically for the occasion. While Tsumiki was originally skeptical and resistant to dressing like a cat, Mayoi guilted her into it by talking about how hard Io worked, and saying that his hands have been pricked by the sewing needle (which Io denies).
Community content is available under CC-BY-SA unless otherwise noted.