Perhaps he uses some ninja techniques like a shadow clone jutsu. He could make multiple clones to help him sort through and complete the paperwork quickly.
In certain fanfictions, Naruto could approach the paperwork in a more diplomatic way. He might convince others in the village, like his friends or some of the ninja clans, to help him with the paperwork. By using his charisma and leadership skills, which he has developed over time, he gets everyone to pitch in. And with their combined efforts, they manage to defeat the mountain of paperwork. After all, Naruto is not just a powerful fighter but also a great leader who can inspire people to work together.
It depends on the specific fanfiction. Some might have Naruto develop strategies or skills to overcome the paperwork challenge. Others might not focus on this aspect at all.
Maybe Naruto discovers a hidden scroll that has a spell or technique specifically for dealing with paperwork. He then uses this new - found knowledge to make all the paperwork disappear or transform into something more manageable, like a single small scroll that contains all the important information in a condensed form.
Their relationship would likely grow stronger. Naruto would gain more respect for Hiruzen as he sees the amount of work the old Hokage has to do. And Hiruzen would see Naruto's eagerness to help and grow. This could lead to Hiruzen giving Naruto more responsibilities within the village.
Well, Naruto might bring his unique energy to the task. He could start by getting distracted easily, like seeing a cool jutsu diagram on a paper and wanting to try it out right away. But then he'd remember he's there to help Hiruzen. Naruto might come up with some unorthodox ways of organizing the papers, like sorting them by how much 'fun' he thinks the mission described on them would be. And his presence would surely make the usually dull paperwork a bit more lively for Hiruzen.
The plot could center around Lucy's transformation as she does the guild paperwork. At first, she might be frustrated and overwhelmed, but as she delves deeper, she starts to understand the importance of it for the guild's functioning. She could also find some hidden secrets or messages in the paperwork that lead to an adventure.
Gray could be a supporting character. He might be passing by and end up getting dragged into helping Lucy, reluctantly at first. Levy could be another. Since she loves books and knowledge, she could offer some help in deciphering the more complex parts of the guild paperwork. And of course, Wendy could be there to offer her gentle support and maybe some healing magic if Lucy gets too stressed.