The rookie 9 seeing Naruto's scars is a moment of revelation. Naruto has always been a bit of an enigma to some of them. His scars could make Hinata even more protective and caring towards him. Lee might find even more inspiration in Naruto, seeing his physical marks as a testament to his never - give - up attitude. Sasuke, on the other hand, might have a complex reaction. He may be reminded of his own journey and how Naruto has also suffered, which could potentially change their dynamic in some way.
Some of the knights may be filled with guilt. They might think that they should have been there to protect Merlin and prevent him from getting those scars. Others could be in awe, seeing Merlin in a whole new light, realizing that he has a hidden past full of pain and heroism that his scars represent.
They might react with shock, as they may not have fully realized the extent of the danger Percy has faced. Some gods could be impressed by his survival and show newfound respect.
In fanfiction, mortals might react with shock. They may be curious about how Percy got those scars. Some might be sympathetic, while others could be fearful, thinking Percy has been through some really dangerous situations.
Well, it depends on the nature of Percy's friends. If they are very close friends, they would likely approach him with empathy. They may offer support, like listening to his story without judgment. For example, one friend could be really gentle and hold his hand while he talks about the origin of the scars. Another friend might try to lighten the mood by saying that the scars make Percy look like a tough hero from a story.
A villain like Shigaraki would likely be interested in the power levels in the MCU fanfiction. He's always looking for ways to increase his own power, and seeing the various powerful artifacts and abilities in the MCU might give him some ideas. He could think about how he could use similar things in his own plans to take over the MHA world.
They might be shocked and sympathetic. The Weasleys are a kind - hearted family. When they see Harry's scars, which are symbols of his difficult past, they would likely show concern. For example, Mrs. Weasley might immediately fuss over him, asking how he got them and if they still pain him.