These sites often host serialized "web-novels" or indie films that focus on:

By framing these stories as a "saga," creators encourage binge-watching or binge-reading. Audiences become invested in the characters' long-term corruption or redemption arcs.

This appears to be a stylistic or colloquial branding, often associated with specific creators, platforms, or localized slang that identifies a particular "brand" of transgressive storytelling. Why "Transgressive" Family Sagas Are Trending

In an era of content oversaturation, creators often use extreme themes to cut through the noise. A "pervert family saga" promises a level of intensity and "unfiltered" storytelling that standard television cannot provide.

To understand the popularity of this specific search term, one must look at the individual elements that make it up: