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.
The 'eve white eve black story' could potentially be a story that uses the concept of duality. Eve White and Eve Black might be two sides of the same person or two different entities. Maybe it's a psychological exploration where Eve White is the more docile, traditional side and Eve Black is the more rebellious or wild side. However, this is all speculation without more information about the actual story.
" Interstellar Eve " was a romantic novel written by Young Master Qingchen. The story was about a small attacker who had been doing it for twenty-eight years. Because of a mission, he became a small receiver and shouldered the heavy responsibility of giving birth. He needed to choose from 45 suitable candidates. The first one was the boss he had always admired. The plot of this novel was full of ups and downs, and it was exciting. It was an urban romance novel with excellent plot and writing style.