While there is no major commercial title with the exact name "Eng Modern Ninja Attacked by her Insane Uncle," the phrase appears to describe a specific indie game or a localized fan-translation (often termed "ENG" for English) of an adult-oriented title.

Modern Ninja: Refers to the aesthetic of the protagonist, often blending traditional stealth skills with modern technology or urban outfits. 3. Similar Media and Inspirations

But Kaito had already repacked herself.

Her last public statement (posted to a closed martial arts forum before deletion):

So, the full phrase describes: “An English-translated, repackaged version of a game where a modern-day female ninja fights her psychotic uncle.”