In many light novels, the plot unfolds gradually as the story progresses. It might start with introducing the main character, Iroha Isshiki, and their situation. Then, there could be a series of events that lead to a change in their life. This could be something like a new discovery, a meeting with an important person, or a problem that they need to solve. If there are other elements such as a love interest, it would add another layer to the plot. However, without actually reading the 'iroha isshiki light novel', we can only speculate about the possible plot elements.
Another scenario could be that Naruto and Sasuke discover a new power within themselves during the fight against Kaguya. This new power could be related to their friendship or their connection to the Sage of Six Paths. They then use this power to finally defeat Kaguya.
Most likely Naruto and Sasuke. In the original series, they were already very powerful when they faced Kaguya, and in fanfiction, they could be even more so. Their combined strength and determination usually make them the favorites to win.
One exciting moment could be when Naruto and Sasuke combine their powers in a new and unexpected way. For example, they might create a unique jutsu that gives them an edge against Kaguya. It's always thrilling to see how they work together, especially considering their complex relationship.
I'm not very familiar with a specific 'iroha isshiki light novel'. But you can try searching on some well - known light novel platforms like J - Novel Club or Amazon's light novel section.
Naruto. His positive attitude and never - give - up spirit often inspire Sasuke. Also, his ability to connect with people gives them an advantage. He can rally support from unexpected places and his chakra is always a big boost in tough battles.
Yes, there are likely many Naruto fanfictions that involve Kaguya and explore her various characteristics. Some might focus on her power, her origin story, or her role in the Naruto universe. However, without specifically searching through fanfiction databases, it's hard to be more precise.