Perhaps Anko has a personal connection to Naruto. Maybe she sees a bit of herself in him, like his determination in the face of difficulties, and this makes her feel a sense of kinship and thus the need to protect him.
Anko might show protectiveness in the Naruto fanfiction by physically defending Naruto when he is in danger. For example, if Naruto is being attacked by enemies, Anko could jump in and use her skills to fend them off.
Perhaps Anko is trapped in a genjutsu and Naruto uses his own experience with breaking free from illusions to save her. He could sense her distress and use his chakra to disrupt the genjutsu, freeing Anko. This would show Naruto's growth and his ability to help those in need, even a more experienced ninja like Anko.
One challenge could be the reaction of the village. Since Naruto is a well - known figure, the news of him impregnating Anko might cause a stir. There could be rumors and gossip that they would have to deal with.
It could be that Anko is under some sort of mind - control in the fanfiction. And because of that, she attacks Naruto without really meaning to. Maybe she has been influenced by an enemy's genjutsu. So, she uses her powerful attacks on Naruto, and he gets hurt as a result.
One reason could be that he sees Naruto as a younger version of himself in some ways. Both have had their share of loneliness and challenges growing up. Kakashi may want to prevent Naruto from going through the same pain he did. Another reason is Naruto's importance to the village. As the jinchuriki of the Nine - Tails, Naruto is a key asset. Kakashi, being a loyal ninja, wants to protect the village's future which is tied to Naruto.
Well, Naruto has a huge and passionate fan base. People are protective of Naruto fanfiction because it's a way to keep the Naruto universe alive. It allows fans to explore different storylines, relationships, and character developments that they might have imagined while watching or reading the original Naruto. It's like a creative extension of the beloved series.
Well, Rookie might protect Naruto by always being by his side during dangerous missions. For example, when facing strong enemies, Rookie could use his own skills to shield Naruto from attacks.
In some Naruto fanfictions, Anko might be depicted as cheating on Naruto, but this is not part of the original Naruto storyline. Fanfiction allows for a lot of creative and often non - canon interpretations of characters' relationships.