A typical plot in Naruto evil scientist fanfiction is the scientist creating artificial tailed beasts. They might use their scientific knowledge to manipulate chakra in ways that no one has ever thought of before. They could also be trying to find a way to control the real tailed beasts by creating some sort of device or jutsu. In some stories, the evil scientist is actually a former ninja who was rejected by the village and now wants revenge through their scientific creations.
Well, often in Naruto evil scientist fanfiction, there's a plot where the scientist is obsessed with immortality. They conduct all sorts of cruel experiments on people to figure out how to live forever. This might involve stealing chakra from others in a very brutal way. Sometimes, they try to merge different species' DNA to create some sort of super - being. And they usually oppose the main characters like Naruto and his friends because the heroes would try to stop their evil plans.
Well, perhaps a plot where the harem members in the 'evil naruto harem fanfiction' have to deal with the consequences of being associated with an evil Naruto. They might face opposition from the regular Naruto's friends and have to fight to protect their relationship with him. It could also involve the harem members trying to change Naruto from his evil ways, leading to some really emotional and tense moments.
A possible plot is that the evil Hokage has been corrupted by power. They start to impose extremely harsh rules on the villagers. Any form of dissent is brutally punished. They also might be using the village's resources for their own hedonistic desires, like building huge palaces for themselves while the common villagers suffer from poverty and lack of basic necessities.
Perhaps an evil Kushina could be jealous of the attention Naruto gets from others in the village. So she starts to plot against him, creating all sorts of false accusations and challenges for Naruto. Naruto then has to not only prove his innocence but also try to figure out what made his mother turn evil and if there's a way to save her.
Another theme is the clash between traditional ninja ways and scientific thinking. In these fanfictions, the Mad Scientist often has to face resistance from the more conservative ninja who are used to the old ways. It creates a lot of interesting conflicts and storylines. For example, they might not trust the new inventions or think they go against the ninja code.
A frequent theme is the combination of two different worlds, that is, the world of ninja and the world of science. Naruto tries to bridge the gap between them. Also, the theme of discovery is common. He discovers new powers or ways to enhance existing ones through his scientific experiments. For instance, he might find a way to make his shadow clones more efficient by applying some scientific theory.
One interesting plot could be that Evil Naruto uses his Mangekyou Sharingan to manipulate the memories of the villagers. He makes them believe false things about their past and present, causing chaos in the village. For example, he could make them think that their friends are enemies, turning the village against itself.
One common plot could be Sasuke trying to redeem Naruto from his 'evil' ways. Maybe Naruto has been influenced by some dark power. Sasuke, with his strong will and sense of justice, attempts to bring Naruto back to the light. Another plot might involve a battle of ideologies. Evil Naruto believes in a more cut - throat way of achieving peace, while Good Sasuke adheres to a more traditional sense of right and wrong. They constantly clash as they try to impose their views on the ninja world.
One common plot is that Naruto gets injured during a battle with a powerful enemy, and then his friends have to find a way to heal him while also dealing with the threat the enemy still poses.
A common plot is the discovery of Naruto's illness. Often, it starts with him feeling unwell during a mission or training, and then his friends notice something is off. Another plot is how the village reacts. Some villagers might be worried, while others might see it as a weakness in their strongest ninja. For example, in some fics, there are political implications due to Naruto's illness.
The characters included the protagonist Orochimaru and Uncle Snake (?) Mastering the core technology, the male protagonist-Amamiya Kenichi, a master of ninja cloning, a strange researcher, and a rebellious disciple of the master. "Teacher Orochimaru, Naruto Evil Scientist" Author: A Pot of Breeze Wine. It's a light novel/derivative doujinshi novel with transmigration elements. User recommendation: Thank you for your invitation. I'm in Kogaha. I've just taken Orochimaru as my master. "So, is it a genetic mutation or something else that caused the Shura Eye to change from one magatama to two magatama and three magatama?" Looking at the test subject in front of him, Amamiya Kenichi's eyes were filled with curiosity.“... I keep feeling that there's something wrong with the way this disciple looks at me." Orochimaru held the 'Research Report on the Effects of Soul Reincarnation on the Body' that Amamiya Kenichi had handed over, and his expression was ugly. I hope you will like this book.