Fantasy / Horror + young hot japanese girls = what more do you want?
This movie mixes cartoony Fantasy with Horror, Splatter and Gore and the actresses are young hot 17 years old japanese teenage girls...
The nudity in the film:
One girl stands up in the bath room, completely naked for a brief shot.
The other one gets pulled under water and then her clothes get ripped off her body, you see almost everything of her body, butt, bare breasts and nipples.
Then a girl rips of parts of the Kimono of the other girl and you see her breast revealed.
When it was first released, Miki Jinbo who played the character "Kung Fu" gathered the most votes by the young male audiences, as she kicked her way around the house wearing skimpy tank top and shorts.
Haha, what more do you want?
No wonder this was a big hit and success for Toho! :)