A corrupted Naruto fanfiction might show Naruto or other characters using dark magic or evil powers in a way that goes against the original story's concept of chakra. If the story is full of plot holes and the characters' actions seem to have no logical basis, it could be a sign of a corrupted work. For instance, if Sasuke suddenly teams up with the villains for no good reason. Additionally, if the fanfiction has a lot of OOC (out of character) dialogues where the characters speak in a way that doesn't match their personalities at all, it's likely to be corrupted.
If in fanfiction Naruto shows a lack of empathy towards others, that could be a sign. For example, if he ignores the pain of his friends or villagers without any remorse. Another sign could be if he manipulates people for his own gain without any regard for their feelings.
One of the signs could be the way Anko looks at Naruto in fanfic. There might be a certain softness or longing in her eyes. Also, she could be very eager to engage in conversations with him, always asking him about his day or his latest mission. She might remember small details about him that others wouldn't. And when Naruto is in danger, Anko could show extreme concern, even more than what is considered normal for her character in the original series. These are all possible signs of her having a crush on Naruto in fanfic.
Maybe she's always seen with Naruto fanfiction books hidden in her bag. Or perhaps she blushes when someone mentions Naruto fanfiction in a conversation.
One sign is that Hinata blushes a lot around Naruto. Whenever he is near, her cheeks turn red as she gets flustered. Another sign is that she is always stealing glances at him. During classes or in the academy courtyard, her eyes will often seek him out without her realizing it. Also, she might stutter or get tongue - tied when trying to talk to Naruto, which shows her nervousness because of her crush.
Well, Naruto might gain some unique abilities from the dog contract. For example, he could have enhanced senses like better smell or hearing. Maybe he'd be able to communicate with dogs more effectively and use them in battles in new and creative ways.
The plot could be that Naruto signs the snake contract in a moment of desperation. For example, during a battle where the village is on the verge of destruction and all other options seem exhausted. After signing, he discovers that the snake contract gives him access to a hidden dimension filled with snake - like creatures and ancient knowledge. He has to train in this dimension to master the powers of the contract. But there are also other forces in this dimension that want to use Naruto for their own evil purposes. He then has to fight against these internal threats while also using his new - found snake powers to defend his village from external enemies.
The dogs themselves would be very important characters. There could be a lead dog, like a wise and powerful alpha dog that Naruto forms a close connection with. Maybe Akamaru could also play a role, since he is a dog in the Naruto universe already and could be involved in some way with Naruto's new contract.
Well, it could mean he gains new powers related to the monkeys. Maybe he can summon really powerful monkey-like creatures to help him in battles. For example, he might be able to call on monkeys with unique jutsu or abilities that normal summons don't have.