In some 'naruto goes mad' fanfictions, Naruto might be driven mad by the loss of his friends. For example, if Sasuke were to die in a battle, Naruto could lose his grip on sanity. Another plot could be the result of some dark jutsu being used on him, like a genjutsu that messes with his mind. Maybe a powerful enemy targets his mental state to turn him into a weapon against the Hidden Leaf.
Obviously, Naruto is the central character as the title 'naruto goes mad' implies. Sasuke often plays a crucial role too. He might be the cause of Naruto's madness in some cases, like if he betrays Naruto again in a more extreme way. Sakura could also be involved, perhaps trying to bring Naruto back from his madness. And Kakashi, as Naruto's former teacher, may try to figure out what's wrong with Naruto and find a way to help him.
Overall, 'The Devotion of She Who Goes Mad' is a visually stunning and emotionally charged visual novel. It offers a deep exploration of themes like madness and devotion, with a plot that keeps you engaged throughout.
Toge Inumaki is important too. His special cursed speech ability makes him stand out. Also, the principal of the school, Masamichi Yaga, is likely to be important as he is in a position of authority and has an influence on Gojo and the other students. There could be other characters like the members of different clans that also play roles in the complex web of the story.