Well, in this 'naruto son of luna fanfiction', it might involve Naruto facing new challenges. Since he's the son of Luna, perhaps there are enemies from Luna's side of the story. He could be trying to balance the expectations of the ninja village and whatever heritage comes from Luna. And he might also discover new jutsus or abilities that are related to his unique parentage.
Well, it could be about Naruto having special powers or a destiny due to being the son of Princess Luna. Maybe he has to balance the ninja world with the magical realm his mother comes from.
The plot could involve the human son having special powers. Maybe he can communicate with the moon like Princess Luna. He might go on adventures in Equestria, making friends with ponies and learning about their world.
Well, it could be that Luna, from My Little Pony, gets into some kind of danger in a world where Naruto also exists. Maybe there are dark forces threatening Luna, and Naruto, with his ninja skills and sense of justice, decides to protect her. He might use his shadow clone jutsu to surround and guard her, or his rasengan to fend off attackers.
In a 'naruto son of bellatrix fanfiction', perhaps Naruto has some of Bellatrix's wild and unpredictable nature. He could be on a journey to discover his true identity and how he came to be Bellatrix's son. This might lead him to explore the secrets of the wizarding world and his own ninja abilities in a new light.
Well, one possibility could be that Naruto inherits some of Gilgamesh's arrogance along with his power. Maybe he has a special ability to summon ancient Babylonian weapons. And he could use this in his battles in the Naruto world, like against the Akatsuki.
One possible plot could be that Naruto discovers his true heritage as the son of a princess from a hidden kingdom. He then has to deal with the politics and expectations of the royal family while still maintaining his ninja ways. Maybe he has to protect the kingdom from a new threat using his ninja skills.
In such a fanfiction, perhaps Naruto could be shunned by the village from the start. His 'devil' heritage might give him strange powers that he has to hide. He could struggle with self - identity, different from the Naruto in the original who is seen as a hero. Maybe he has to fight against the prejudice of the people who believe the devil's son can only bring destruction.
Well, it could be about Naruto having powers related to Hades on top of his ninja skills. Maybe he can control the dead or has some sort of underworld - like abilities that he uses in battles against the Akatsuki. He might also have to deal with the stigma of being the son of Hades in a world that doesn't understand such a thing.
Maybe Naruto is raised in Gotham instead of Konoha. He could inherit some of Catwoman's skills like stealth and agility, while still having his own ninja powers. He might fight crime in Gotham using a mix of his ninja techniques and Catwoman - like thievery skills, but for good causes.
Perhaps the story involves Naruto's journey to discover his true heritage as the son of Pegasus. He might face challenges from those who don't believe or accept his origin, and he has to prove himself. Along the way, he could make new friends or allies who help him in his quest.