There are many untold stories in the lives of Run and the others, such as the day Tooru received her high school uniform and why she always wears that purple sweater. With the gang witnessing Yuuko's extreme coping mechanisms when they drag her to a horror movie, Satou-sensei's bizarre forehead fetish and Tooru suffering the lingering effects of a nightmare, the girls never run out of things to do or stories to tell.
This is tagged as comedy, but there isn't any to be found. It just has characters that are in a situation. The situation happens like it would for any regular group of people. Then there is a mildly unusual comment at the end. Then roll credits. If Lucky Star was your shit, then watch this.