"Father. We must summon warriors in order to save our kingdom."
"But your three sisters tried and died in the process. What makes you sure that you can complete the summon."
"Father, I am not sure, but I wish to do something for this kingdom. And we need heroes. And we if we want heroes we need to summon them. We need to summon them from another world." The princess drew a summoning circle on the ground and activated it. A blue light shone. And a group of heroes were in the circle. A group of heroes who all knew each other. The members of Victorias High School Class E.
Victorias High School Class E was the worst students of the school. Not because they were dumb, but because of personality problems and things like that. And now some of that class found themselves in a large room. They were no longer in their classroom, packing up before leaving. They were in a strange world now. In a strange land
The world of Elvira. And they are the heroes who will save the strange world they were dragged into.
Elvira also has qualities resembling a video game. Like stats screen, levels, and so on.