This anime was just awesome beyond beliefe which is why it scores a 10/10! Basically it is about adventures in the class room with the three sisters, their teacher and their classmates. Weird things happen and some of the greatest comedy I have ever seen pile up in this anime. I cannot get enough of it and is on my list of rewatch and recommend. Characters are great and the plot is pretty straight forward for a comedy. THUMBS UP! This is a must watch!