This Art Club Has a Problem! Episode 11: Unity! Empty Cans! Cultural Festival!
Episode 11 of 12 of This Art Club Has a Problem!, aired September 16, 2016, 25 minutes. Available with English subtitles and dub where released.
Episode summary
The school festival is coming up. Subaru would rather not do contribute anything, but Himeko-sensei has some big plans. Source: crunchyroll