In the 'naruto has no will to live fanfic', it might explore Naruto's extreme state of mind. Maybe he has faced so many traumas and difficulties that he loses the will to live. For example, he could have witnessed the death of too many loved ones, like Jiraiya, and felt overwhelmed by the responsibilities on his shoulders.
If we assume 'in live' means 'involved', Naruto can be involved with fanfiction through the creativity of fans. Fans write stories about him, so he becomes part of the fan - created fictional scenarios.
There's also 'Date A Live: Ninja Invasion'. This fanfic has a really cool concept where the ninjas from Naruto start to show up in the Date A Live world, causing chaos and also creating some unexpected alliances. It's full of action and some really fun character interactions.
It could mean that Naruto, the character from the Naruto series, is somehow involved or associated with fan - created fictional works in an interesting way. Maybe it implies that there are fanfictions that are very much centered around Naruto's character and his storylines.
Another theme could be the weight of sacrifice. If Naruto has lost his will to live, it might be because he has made so many sacrifices and now feels that it's all for nothing. This can explore the idea of how much a person can give before they break.
It could mean that in the Naruto universe or among Naruto fans, someone named Naruto (or a character representing Naruto) destroyed a fan - created fictional work that was still ongoing or 'live'. Maybe it was a fanfic that violated some unspoken rules or ethics within the fan community.
One common theme is friendship. Just like in Naruto where the characters form strong bonds with their comrades, in Love Live the girls also have deep friendships. In fanfics, these two groups often come together and form new friendships based on mutual understanding and support.
One interesting concept could be the idea of characters getting a second chance at life. For example, a character who died in the original Naruto series might be brought back in the fanfiction with new abilities or a different perspective on life. Another concept could be the exploration of alternate timelines where events in Naruto happened differently, leading to new and exciting storylines.
Sasuke. He has such a complex character arc and his death would have a huge impact on the story. So, in fanfiction, he's a likely candidate to come back to life and continue his journey. Maybe he has some unfinished business or a new purpose to fulfill.