The Olympians' reactions would be quite diverse. Some might be angry that one of their heroes, a son of a major god like Percy, has been reduced to homelessness. Zeus could be one of those who is initially angry, thinking it's a sign of disorder in the world he rules. However, as they start to understand the reasons behind Percy's homelessness, they would probably soften. Hermes, being the messenger god, might be the first to actually go and talk to Percy, trying to find out exactly what he needs. And Aphrodite, with her soft heart for love and beauty, might be among the first to offer him a place to stay, perhaps in one of her many beautiful abodes.
The plot could develop in many ways. For example, Percy could reject the Olympians' initial offers of help out of pride. This could lead to a stand - off where the Olympians have to find more creative ways to assist him without offending his pride. Or perhaps a new enemy emerges, seeing Percy's homelessness as a sign of weakness, and the Olympians and Percy have to team up to defeat this new threat. Along the way, Percy might also start to form a closer bond with some of the Olympians, leading to new alliances and a change in the power structure of Olympus.
The others in the seven, like Jason, would probably feel a sense of guilt for not noticing earlier. They would come together as a group to support Percy. Jason might offer his friendship and strength to Percy, telling him he doesn't have to face it alone anymore. They would also likely start to investigate who was responsible for the abuse.
They might be shocked at first. They probably didn't expect Percy, who is usually so strong and brave, to be dealing with depression.
Some of his friends could also be open to the idea of the mortals knowing. They might see it as a chance to educate the mortals about the demigod world and promote co - existence. Grover, for instance, might be more sympathetic towards the mortals and want to help them understand Percy's situation better.
The reaction of the gods would be diverse. The muses might be intrigued and want to inspire Percy further. Dionysus, the god of wine and celebration, might see Percy's singing as a great addition to his wild parties. However, some of the more serious and war - like gods, such as Ares, might scoff at it, thinking it's a useless skill for a demigod. But overall, Percy's singing would definitely stir up a lot of different emotions and reactions among the gods in the fanfiction world.
They might be shocked at first. They could feel a sense of guilt for not noticing earlier. Maybe they immediately try to comfort Percy and offer their support, like giving him a safe place to stay and assuring him that he's not alone anymore.
The gods might be outraged. They could see Percy as one of their own, especially since he has done so much for them. They might immediately seek to punish the abuser. For example, Zeus could send a bolt of lightning towards the person who abused Percy.
The Avengers as a whole would probably start to work with Daredevil more closely. They would realize that his blindness doesn't make him any less of a hero. They would also learn from his unique fighting style which is adapted to his lack of sight, and they might incorporate some of his techniques into their own combat strategies.
They would be shocked and angry. James might immediately want to confront Sirius' family. Remus would be empathetic and try to comfort Sirius. Peter, though a bit cowardly, would also show concern.
I don't think so. Olympians are from Greek mythology and they don't exist in the real world to be able to pick up and read fanfiction. Percy Jackson fanfiction is a modern creation by fans for fans. While fans of the Percy Jackson series might have an interest in Greek mythology, the reverse, that Olympians would read the fanfiction, is just not possible in a literal sense.