The basic plotline for the story begins with Italy hearing rumors about a haunted mansion. Wanting to spend time with the others more and go on an adventure, he tells America about it, who in turn tells all the others at a World Meeting. After the meeting, Prussia, Germany, Japan, and Italy all enter the house together (they are later followed by China, Canada, America, Russia, France, and England). They only wanted to look around a bit and then leave, but their plans are quickly ruined when they find themselves unable to open the front door or any windows once they get inside. To make matters worse, inside the house is a great, alien-like monster (referred to as Tony by the nations and fans) that seems to be bent on killing them all. What follows is a great adventure, filled with mystery, suspense, blood, bravery, and sacrifice, all of which ultimately cause the nations to form bonds and friendships with each other and become stronger than ever before.
Random Guy: Yeah, HetaOni is pretty good- I AM JUST SO PISSED THAT THEY ALL DIE >TROLOLOL SPOILER XD<
Female: D8< HEY I NOT DONE WATCHING