Who might be the one taking the heir name from Naruto in the fanfiction?

He might meet Hinata. She is kind - hearted and would surely be interested in the puppy. She could offer to help Naruto take care of it, like making a little bed for the puppy.

He might be really angry at first. Naruto has always fought for recognition, and having the heir name taken away would feel like a huge slap in the face. So he could lash out, trying to prove his worth.

It could be a long - lost relative of Hashirama. Maybe a distant cousin or a descendant from a hidden branch of the Senju family. This character would carry the bloodline of Hashirama and thus have the potential to inherit his powers.

Sasuke could be a likely candidate. He's always been somewhat jealous of Naruto's growth and popularity. In the stress of the Forest of Death, he might let that jealousy get the better of him and betray Naruto. Maybe he thinks that by getting rid of Naruto, he can be the only strong one in the team.

He could be hiding from Orochimaru. Orochimaru has always been interested in Naruto's power. Maybe Naruto has discovered a new power that Orochimaru wants even more desperately, so he hides behind a mask to avoid Orochimaru's detection.

Sasuke could be a likely candidate. Despite their complex relationship, Sasuke has a deep bond with Naruto. If he were to find out that Naruto was in such a predicament, he would likely rush to his aid, using his Sharingan and powerful ninja skills to take on whoever is guarding the cage.

Perhaps it's an old enemy who has a change of heart. This enemy could think that by training Naruto, they can make amends for their past wrongs. But Naruto, being cautious, denies the offer as he still has doubts about this former foe's true intentions.

There could also be some well - known Naruto characters who play important roles in the story. For instance, Naruto or Sasuke could be involved, either as mentors or as characters who are somehow related to the events involving the heir. Maybe Naruto helps the heir come to terms with the deaths they are associated with, or Sasuke has some knowledge about the secrets behind the deaths that the heir needs to know.

Obviously Naruto would be one of the main characters. There could also be characters from the Harry Potter series such as Harry Potter, Ron Weasley, and Hermione Granger. They might interact with Naruto, helping him understand his new role as the heir of Gryffindor.

Obviously, the heir of Madara would be a main character. There might also be other characters from the original Naruto series, like Naruto himself. Naruto could be in opposition to the heir, seeing them as a threat to the peace he has worked so hard to achieve.