What could be the possible plot in a fanfiction where Naruto is experimented on by Danzo?

One possible motive could be power. Danzo was always obsessed with having power in Konoha. By experimenting on Naruto, who is the Jinchuriki of the Nine - Tails, he might have hoped to harness the power of the Tailed Beast in some way. Maybe he thought he could create a super - soldier or gain some unique abilities from Naruto's connection to the Nine - Tails.

One possibility is that Tsunade is trying to find a way to enhance Naruto's already formidable chakra control. Maybe she's experimenting with new medical - ninjutsu techniques to see if she can make Naruto's body even more resilient in battle. This could lead to Naruto having to endure some painful procedures but ultimately emerging with new powers.

Well, perhaps Danzo kidnaps Naruto because he sees Naruto as a threat to his secretive and often unethical operations. He might fear that Naruto will eventually expose his wrongdoings. So, he takes Naruto to a hidden location and tries to keep him there, but Naruto's friends like Sasuke and Sakura would then start a rescue mission.

Sakura might be extremely angry and feel guilty for not being able to protect Naruto. She could immediately start planning ways to rescue him and make Danzo pay for what he's done.

Naruto could also become more vengeful. If he survived the experiments, he would likely be angry at Danzo for what he had done. This could lead to a darker side of Naruto emerging, where he is focused on getting revenge rather than his original goal of becoming Hokage and being accepted by the village. He might be more willing to use force and be less forgiving.

Perhaps the experiments by Cadmus would change Naruto in unexpected ways. His powers could be altered, and he might develop new abilities or lose some of his old ones. This could lead to a conflict within Naruto as he tries to come to terms with these changes. His friends in Konoha might initially be suspicious of him due to his altered state. But Naruto would strive to prove that he's still the same person at heart and use his newfound or remaining powers to protect his village from any threats related to Cadmus.

Well, he could gain some new and unexpected powers. Maybe he discovers a way to enhance his chakra control to an extreme level, allowing him to perform jutsus with much greater efficiency and power.

Another aspect could be that the successor discovers some long - hidden secrets left by Danzo. These secrets could be related to powerful jutsu or ancient ninja lore. And as they uncover these secrets, they have to decide whether to use them for the good of the village or keep them buried to avoid causing chaos.

Well, one possible plot could be Naruto growing up under Danzo's influence. He might be trained in more underhanded and secretive shinobi techniques. For example, he could be taught to prioritize the village's security above all else, even if it means using morally gray methods. This would put him at odds with some of his friends who follow more traditional ninja values.

A possible plotline could be that Naruto is influenced by some dark force or event that makes him see the world more like Danzo. For instance, if there was a new threat to the village that made Naruto believe that extreme measures were necessary. He might start to control the flow of information within the village, just as Danzo did, believing it would keep the villagers safe but actually causing mistrust among them.