It sounds like you’re referring to a specific adult or niche manga/doujinshi title: “Undercover Girl: The No-Pan JK Sting Work” (likely “JK” standing for joshi kōsei /high school girl, and “no-pan” meaning no panties).
: A Japanese portmanteau for no pantsu (no panties). It refers to the practice of not wearing underwear, which has historically been a trope in certain Japanese "no-pan kissa" (no-panties cafes) or "nopan kudo" (no-panties police) media. undercover girl the nopan jk sting work
: While the static images look retro, the actual movement framework features high-frame-count animations, particularly for attack sequences, environmental destruction, and character reactions. It sounds like you’re referring to a specific