Meanwhile, another Japanese schoolgirl is attacked by a pile of possessed firewood, which she fights off with a martial arts display, losing her skirt in the process. She remains in her underwear for the rest of the movie, until being eaten by a lampshade while the rest of the house floods with spewing human blood. Shit, that's nothing. That probably happens so frequently that it's practically a cliche in Japanese cinema now.
It's not just women who suffer insane deaths: The sole male character is turned into a pile of bananas near the end of the film. This has nothing to do with the haunted house (the man is elsewhere) or the film's main villain; it's as if the movie-makers just wanted to throw in a warning about fruit-based sorcery after reading about it in the newspaper that week and becoming concerned.
If an alien who had just landed on Earth cornered you one day and asked, "Hey, what's with all the Internet jokes about Japan being really weird?" you could show him this movie and he would say, "Oh." Then he would leave planet Earth forever.