Keep your hands off Eizouken altered

One day, The three high school girls, Midori, Sayaka and Tsubame were heading to the today's festival, as they get there. It's empty.. then they see a portal and off they off by having adventures in Midori's actual world. (If some of you aren't familiar with the anime or the manga, it's basically 3 high-school girls trying to make anime in this anime. They also seek to achieve making anime.)