I don't have enough information from just the title to know exactly who 'the seven' are. They could be a group of characters specific to the fandom this fanfiction is based on. Maybe they are a team of heroes or friends who are in some way connected to Percy.
Well, it could be that 'the seven' in this fanfiction notice Percy's dark side which might be related to his powers. Maybe his powers have a negative influence on him that he tries to hide, and 'the seven' start to see the signs. For example, if Percy has some sort of water - related power that can be used for destruction as well as good, the dark side could be when he's tempted to use it in a more harmful way.
There's not enough information to know exactly who the seven are. They might be characters created specifically for this fanfiction. Or they could be based on existing characters from the original story that Percy is from. Maybe they are a group with a particular purpose, like protecting Percy or helping him on a new quest. Without reading the fanfiction, it's all speculation.
I'm not sure exactly what this fanfiction is about as I haven't read it. But it might be about a group of seven characters seeing Percy's scars. Maybe it's set in a fictional world where Percy has gotten those scars through some kind of adventure or battle.
I don't have enough information from just this title, but in many Percy - related fanfictions, 'the seven' could be a group of characters who are closely associated with Percy in some way, perhaps a team or a group of friends.
I'm not sure exactly as I haven't read this particular fanfiction. But generally, it might explore the darker aspects of Percy that the group called 'the seven' discovers. Maybe it shows Percy struggling with inner demons, like anger, or having secrets that could change the way the seven view him.
I'm not sure exactly as I haven't read it. But it might be about the seven characters seeing Percy's scars. It could be a story that focuses on their reactions, how they feel about Percy having those scars, and maybe there are some emotional exchanges or plot developments based on those scars.
Obviously, Percy is one of the main characters as his scars are the focus. As for 'the seven', they could be a group of comrades or allies. They might be characters with different personalities and abilities. Maybe they have their own backstories that will interact with Percy's story once they see his scars. For instance, one of them could be a healer who is concerned about how Percy got the scars, or a curious character who wants to know the whole story behind the scars.
One aspect of Ahsoka in dark side fanfiction might be her change in appearance. She could start wearing darker robes and her lekku might even seem to have a more menacing look. Her fighting style would also likely change, becoming more aggressive and less about defense. Writers often explore how her relationships with other characters, like Anakin, would be affected. Anakin might be torn between trying to save her and seeing her as a threat.
Dark Side Virgil Fanfiction gives a chance to delve deeper into the character. Writers might imagine him being influenced by some dark force or having a past event that has led to this 'dark side'. This could create a whole new narrative arc for him. It might involve him making choices that are morally grey or even bad, and then seeing how he either redeems himself or continues down that dark path.