Well, without more context, it's hard to say exactly. However, they might be tales of friendship among these 'nepi boys'. For example, how they support each other through difficult times at school, like when one of them is being bullied and the others stand up for him. These stories could also be about their dreams and aspirations, such as wanting to become a famous athlete or a great scientist.
Since I don't have much information about 'nepi boys stories', they could potentially be stories that are set in a particular cultural or regional context. Perhaps they are stories that have been passed down within a community about these boys. It could include their daily lives, the games they play in the neighborhood, and the lessons they learn from their elders. It might also involve their interactions with the natural environment around them, like taking care of a local park or a small garden.