Corpse party is something with, high-school students going to a different dimension of a old elementary school, the charm they did is actually how they got there, i seen all the episodes, it is all about gore, death and elementary students that got killed by someone named Sachiko Shinozaki, after the principal killed Sachiko, he accidently killed his crush, Sachiko's mother Yoshie, After playing the games and watching the anime, you could check it out if you want ^^, if you have heart problems and is scared of blood I recommend not to watch.
