In the fanfiction, Percy growing wings could be a sign of a new power awakening within him. This new power could be related to his godly heritage. He could use the wings to travel to new and mysterious places, face new enemies, and also discover more about his own identity. The wings could also symbolize his growth and evolution as a character, taking him on a journey of self - discovery that is both exciting and dangerous.
It could be a jealous demigod who sees Percy's wings as an unfair advantage. This character might try to find a way to cut off Percy's wings or steal the power that gave him the wings.
Another possibility is that the antagonist could be a dark entity that is awakened by Naruto's new power. The wings might have some sort of connection to an ancient evil, and this entity wants to use Naruto's wings to spread chaos and destruction across the ninja world.
Well, one possibility is that Naruto gains wings as a result of some new and powerful jutsu he discovers. Maybe it's a forbidden jutsu that has unexpected side effects, like the growth of wings. With these wings, he could gain new abilities in combat, such as faster aerial attacks or the ability to reach distant places quickly.
Perhaps the wings grow as a result of some ancient magic that has been awakened within Harry. He could be exploring an old, forgotten part of Hogwarts and accidentally triggers a spell or a curse that gives him wings. At first, he might be scared and try to hide them, but as he learns to control them, he realizes they can be used for good, like helping him rescue trapped students or animals in the Forbidden Forest.
There could be many amateur authors out there who might write such a fanfiction. It could be a young, creative Harry Potter fan who loves to imagine new and exciting adventures for the characters. They might be inspired by their love for the series and the idea of giving Harry a new and unique ability like growing wings.
Perhaps it's a gift from his father, Poseidon. Since Poseidon has control over the sea and all things related to water, he might have some connection to a power that gives Percy wings, like as a way to help Percy reach new heights both literally and metaphorically.
One possibility could be that it's a result of some powerful magic gone awry. Maybe during a spellcasting class or an encounter with a mysterious magical artifact. This new development might lead to him being ostracized at first as others are afraid or jealous. But then he could use his angel wings to his advantage, like flying faster and more stealthily than on a broomstick.
Maybe Harry is exploring an ancient and forgotten part of Hogwarts when he stumbles upon a magical artifact that causes him to build a cocoon. Once he grows wings from this cocoon, he finds that he has a connection to a long - lost race of magical beings with wings. He embarks on a journey to discover more about this race, all while trying to keep his new form a secret from his friends at Hogwarts who might be afraid of his transformation.
Well, perhaps Percy is a character in a magical world. He could have been cursed or exposed to some strange magic that causes him to grow a tail. Maybe it starts as a small, furry growth that he tries to hide, but as the story progresses, the tail takes on a life of its own and gives him unique abilities like climbing better or sensing danger.