One possibility is that Ryu trains Naruto in the ways of self - discipline and inner strength. Since Ryu is known for his strong will in the Street Fighter universe. Naruto, under his guidance, might learn to better handle his emotions during tough battles. This could lead to Naruto becoming even more powerful as he doesn't let anger or over - confidence cloud his judgment. And they could go on adventures together, facing enemies that require both Naruto's ninja skills and Ryu's martial arts expertise.
Naruto's character could become more focused and disciplined. Ryu's training might instill in him a sense of precision that he didn't have before. For example, Naruto is often impulsive in battles, but with Ryu's influence, he could learn to calculate his moves more carefully.
A common theme is friendship. Just like in the original Naruto series, in 'ryu naruto fanfic', characters often form strong bonds. For example, Ryu might form a deep friendship with Naruto or other ninja, and they support each other through tough times.
There are so many Naruto fanfics that it's difficult to say for certain whether there is one titled 'ryu sakura slave moan'. Fanfic titles can range from the very common to the extremely strange. It's possible that this is a title created by a fan for their own personal work that may or may not have been shared widely. You might want to check fan - created Naruto fanfic communities or forums to inquire about it.
Kosuke might be a character created specifically for this fanfic. He could be someone with a unique background, like perhaps he was once a disciple of a great ninja but then went on his own path. And now he sees potential in Naruto and decides to train him. He could have abilities that are different from the main characters in the original Naruto series, which is why he has something new to offer to Naruto in terms of training.
In this fanfic, Lilith could be an original character created by the author. She might be a powerful and mysterious figure with special abilities that make her suitable to train Naruto.
She could be someone with a special bloodline or ability. Maybe she has a unique form of chakra that gives her certain powers. In the context of training Naruto, her skills and knowledge are what make her important. She could be a mysterious figure who has been observing Naruto for a while and decides to take him under her wing to help him reach his full potential. For instance, she might have the ability to see the latent potential in others and wants to shape Naruto into a great ninja not just for his own sake, but also for the greater good of the ninja world.
It could lead to Naruto becoming even stronger and more skilled than in the original story. Jiraiya's training methods might unlock new powers for him.
Another place to look for 'naruto ryu hayabusa fanfic' is Reddit. There are various subreddits dedicated to fanfiction. You can post a request for such fanfics in relevant subreddits or simply search through the existing posts. Some users might also recommend other niche websites or forums where these types of fanfics are shared.