It’s a fine line to walk in terms of tone, but Calamity of a Zombie Girl is mostly successful in this regard.
In TV terms, Calamity of a Zombie Girl would be rated TV-MA, while in movie terms, the film would likely receive an R rating for nudity and gruesome, graphic violence.
Crunchyroll currently streams Calamity of a Zombie Girl in North America, Latin America, Russia, South Africa, and Scandinavia.