Well, it could change the power dynamics. With Dolohov on Hermione's side, the enemies she faces might be more cautious. His skills and knowledge as a former antagonist can give Hermione and her allies an edge. For example, he might know the weaknesses of the other dark wizards, which can be used to their advantage.
It can also introduce a new source of conflict. Some of Dolohov's former allies may not understand his decision and might try to stop him or even turn against him. This can create a whole new set of battles and challenges in the fanfiction. Moreover, Hermione herself might be conflicted about having Dolohov as an ally, as she has seen him as an enemy before. This internal conflict within Hermione can also shape the plot in interesting ways.
The canon storyline gets a huge shake - up. In the original, Hermione is an advocate for Muggle - born rights. But if she's Dolohov's daughter, she might be more conflicted about the whole pure - blood vs. Muggle - born issue. Her relationships with characters like Harry and Ron could be strained as they might be a bit wary of her new connection. Plus, the way she views the Dark Arts could be different since it's now part of her family heritage.
It would make her more complex. Usually, Hermione is very rational and follows the rules. But having a crush on Dolohov, a known antagonist, would make her question her own judgment. She might become more secretive as she doesn't want her friends to know about her feelings. This is a big change from her usually open - minded self when it comes to sharing her thoughts and feelings with Harry and Ron.
He might start off as a rather dark and untrustworthy character. But as he helps Hermione, he could gradually become more empathetic. Maybe he sees the good in Hermione's cause and starts to question his own past actions.
One possible reason could be that he sees something in Hermione that reminds him of someone he once cared about. Maybe her intelligence and courage make him respect her in a way that he didn't expect, and this newfound respect leads to his decision to protect her.
Hermione would likely react with her usual intelligence and quick - thinking. She might start by trying to analyze Dolohov's motives and weaknesses. She could also try to find a way to communicate with the outside world, perhaps using magic in a very discreet way.
She is likely to be defiant. Hermione has always been a strong - willed character. So she would probably not go down without a fight. She might immediately start looking for ways to escape or undermine Dolohov's plans.
The concept changes the original story in many ways. For instance, it could lead to a whole new sub - plot where Hermione has to deal with this unwanted attention from a Death Eater. It also makes the Death Eaters seem more human, as Dolohov is showing a non - evil side with his infatuation. This could make the overall conflict between good and evil in the Harry Potter world less black and white, as there are now these complex emotions at play within the ranks of the bad guys.
Perhaps in this context, 'in charge' implies that Hermione has some sort of editorial role. She could be the one who decides which Dolohov fanfictions are promoted or featured. It might also suggest that she is the main contributor to this particular area of fanfiction writing.
In a 'hermione meets dolohov fanfiction', perhaps Dolohov is captured by the Order of the Phoenix. Hermione is assigned to interrogate him. At first, they are hostile towards each other. But as they interact more, they start to understand each other's motives a bit better. Dolohov might even start to have second thoughts about his allegiance to the Dark Lord because of Hermione's strong beliefs.
She could use her intelligence and love for books. Hermione is known for her studious nature. So she might apply her knowledge of storytelling and literary techniques to manage the Dolohov fanfiction.