Well, Naruto is the central figure when it comes to the training aspect. He has his ninja skills, his strong will, and his sense of justice. Fem Vali Lucifer, on the other hand, is an important character as she is the recipient of the training. There could also be other minor characters from either the Naruto world or the world that Fem Vali Lucifer comes from that might play a role in the story, for example, Naruto's friends who could offer some advice or Fem Vali Lucifer's companions who might have an opinion on her training with Naruto.
Naruto, as we know, is a well - known ninja with a wide range of abilities. He is a key character here as he is the trainer. Fem Vali Lucifer is the main character being trained. She might be a powerful being in her own right, but still has things to learn from Naruto. Additionally, there could potentially be other characters like Naruto's sensei, Kakashi, who could pop in and give some pointers to Naruto on how to train Fem Vali Lucifer more effectively, or characters from Fem Vali Lucifer's backstory that could influence her during the training process.
Well, it could be that Naruto, with his ninja skills and determination, helps Fem Vali Lucifer to master some unique powers. Maybe Naruto teaches her stealth techniques or how to better control her energy. He could use his experience from training in Konoha to design a special training regime for her.
One possible scenario in this fanfiction could be that Naruto uses his ninja training techniques to help Fem Lucifer develop new skills. Maybe he teaches her stealth, which she can then use in her own realm to gather information more effectively.
Perhaps the plot involves Naruto being summoned to Fem Lucifer's world. He then realizes that she needs training to deal with a new threat in her realm. So, he starts training her in various ninja arts.
Another theme is adventure. They might embark on quests together, like exploring ancient ruins or fighting powerful enemies. For example, in some fanfictions, they go on a journey to find a lost ninja art, which involves a lot of action and discovery.
Obviously, Naruto and Ibiki are the main characters. Naruto is the protagonist who is being trained, and Ibiki is the trainer. Naruto brings his own unique set of skills and his never - give - up attitude to the training sessions. Ibiki, on the other hand, has his vast knowledge of interrogation, stealth, and mental fortitude to pass on to Naruto.
The main characters are obviously Naruto, as he is the one doing the training. Then there's Sasuke, who is always eager to become stronger and might be a bit of a challenge for Naruto to train. Sakura is also a main character, she is constantly looking to improve her skills. And of course, Kakashi is still around, he might be observing Naruto's training methods and offering some advice here and there.
One popular type of fanfiction about Vali Lucifer in Highschool DxD could be his power development. Writers might explore how he further hones his abilities, perhaps by training in new, secret locations. This could involve him facing off against powerful, previously unknown foes that push his limits and force him to unlock new levels of his power.
An evil organization that is secretly operating in the ninja world could be the main antagonist. They have been researching on ways to create super - ninjas and they believe Vali is the key to their experiments. Naruto discovers their plot and together with Vali, they fight against this organization. The organization has many skilled members and powerful resources, which makes it a difficult battle for Naruto and Vali.
Obviously, Naruto from the Naruto universe and the members of Team RWBY, which are Ruby, Weiss, Blake, and Yang. Naruto would be the trainer, and Team RWBY would be the ones being trained.
There's also a fanfiction where Fem Vali becomes Naruto's ally in a mission to save the Hidden Leaf. In this story, their different skills and personalities complement each other, creating a unique bond. It delves deep into how their relationship develops over time, with some great action scenes and emotional moments.