One main characteristic could be a lack of true autonomy. Since it's a puppet regime, it likely follows the directives of the puppetmaster rather than making independent decisions.
The concept of a 'puppetmaster's regime' is complex. In history, we've seen cases where a regime might seem to be acting independently on the surface but is in fact being directed by another entity. This could be due to power imbalances, where a stronger nation or group wants to have a say in the affairs of a weaker one. For instance, during certain periods of imperialism, colonial powers would install compliant governments in their colonies. These so - called puppet regimes would follow the orders of the colonial power, often at the expense of the local population. They would implement policies that favored the colonial power's economic interests, such as exporting raw materials at low prices. Politically, they would also suppress any local opposition that was against the colonial rule. To really tell the full story of a 'puppetmaster's regime', one needs to look at the historical, political, economic, and social context of the specific situation.
The main distinction of porn with a story genre from regular porn is the presence of a coherent narrative. Regular porn often jumps straight to the sexual action, while the story genre tries to add some kind of story framework around it. But in the end, both are adult-oriented and feature explicit sexual content.
Well, it's hard to say for sure. The concept of 'porn-like' is quite subjective. Some might consider certain novels with excessive sexual descriptions as such, but it depends on individual perspectives and cultural standards.
In many places, 18+ porn comics are considered illegal. This is because they can have a negative impact on society and violate moral and legal standards.