Recent Japanese dramas often explore the darker side of school life and strict regulations, but they do not use the "snuff" or "PKF" branding. Chastity High

If you are researching a specific title that might be misspelled or a very niche underground work, it is important to note that content involving "snuff" (even simulated) and minors is heavily regulated and often illegal to distribute.

The term "snuff" refers to films depicting actual homicides for entertainment. While Japanese "splatter" and "pinku eiga" (pink films) often use extreme gore and simulated violence (e.g., the Guinea Pig