Well, it could be about Percy having a new life in the realm of the gods. Maybe he gets special powers and training from them. He might also face new enemies that are threats to the gods, and he has to use his newfound abilities to protect the divine world.
The plot could involve Percy being adopted by a particular god or group of gods. For example, if he's adopted by Zeus, he might be thrust into the power struggles among the Olympians. He could learn the ways of the gods, like how to control lightning if it's Zeus. And he'd probably have to deal with the jealousy of other demigods who don't have such a privileged position.
In this 'percy adopted by gods fanfiction', perhaps Percy's adoption is a secret at first. He starts to notice strange things happening to him, like enhanced strength and a deeper connection to nature if adopted by a nature - related god. As he discovers the truth, he has to decide whether to embrace this new life with the gods or try to return to his old life among the demigods. There could be a lot of internal conflict as he weighs the pros and cons of living among the all - powerful gods.
Zeus is a possibility. As the king of the gods, he might see Percy's potential and adopt him to have an ally among the demigods. Another could be Poseidon, since Percy is already his son in the original story. It would be an interesting twist to have Poseidon formally adopt Percy in a more divine way.
Maybe in the fanfiction, Percy is on the verge of death in a battle. Chaos, who has been observing Percy for a while, decides to save him and adopts him. Percy then embarks on a journey in Chaos's realm. He could be trained by powerful beings there and form new alliances. His relationships with his old friends from his previous life might be strained as they don't understand his new situation, but he also gains new friends who are loyal to him because of his connection to Chaos.
Well, one possibility is that Percy could gain new powers related to Apollo. For example, he might learn to heal more effectively or have a connection with the sun. Another aspect could be his relationship with Apollo's other children. He'd have to adjust to a new family dynamic within the godly realm.
Well, perhaps Percy has lost his original family or home in this fanfic. Ares, being the god of war, might see potential in Percy. He could adopt Percy to train him to be a great warrior. Percy might struggle with Ares' rough and war - like ways at first, but then gradually adapt and learn unique combat skills from him.
Well, it could be that the gods see Harry's plight at the Dursleys and decide to take him in. Maybe they give him new powers, train him in godly magic that's different from what he learns at Hogwarts. He could also be sent on quests related to both the wizarding world and the realm of the gods.
In the fanfiction, Percy might sing to the gods as a way of expressing his own internal struggles. He could be feeling lost or confused, and the act of singing to the gods is his way of seeking guidance. He might pour out his heart about his identity as a demigod, his relationship with his father Poseidon, and his place in the world of the gods and mortals.
The plot might involve Percy having to complete a series of difficult tasks assigned by the gods. For example, he could be sent on a quest to retrieve a powerful artifact that has been lost or stolen.
Well, one possibility is that the gods are punishing Percy for some perceived disobedience. Maybe he defied their orders during a major quest and now they're making him suffer. For example, they could be sending him through never - ending trials in a hellish realm.
Perhaps the blessings make Percy a target. Other demigods or villains might be jealous of his new status. He then has to deal with the envy and threats while also trying to figure out how to fully utilize the blessings in a positive way. For instance, the gods' blessings might come with some sort of side - effect that he has to overcome as well.
Perhaps Percy leaves the gods after a great battle. He realizes that the cycle of the gods using demigods for their own purposes will never end. He decides to break free and start a new life. He could be seeking a place where he can be his own master and not be at the mercy of the gods' whims.