He could be a wizard who made a deal with a powerful magical entity. In exchange for great power, he lost his face. Now, he appears in the story of Harry Potter, and his presence might be a sign of a greater, more complex plot involving power struggles within the wizarding world that Harry will eventually get caught up in.
Well, the 'the faceless man story' could vary. It might be a fictional tale where the faceless man is a symbol of the unknown. He could be a character in a supernatural story, perhaps representing something that is beyond human understanding. For example, he might be a spirit that lost its face in some tragic event in the otherworldly realm, and now his presence is felt by the living, causing unease and fear.
One possibility is that Jon Snow uses his new Faceless Man skills to infiltrate the Boltons' camp undetected. He could change his face to look like one of their soldiers and gather crucial intelligence for the Starks.
Since I don't know the exact 'the faceless man story', it could be the faceless man himself as the main character. He would be the central figure that drives the plot, whether it's through scaring other characters or being the mystery that needs to be solved.
One idea could be Arya using her Faceless Man skills to avenge the wrongs done to her family. She could infiltrate the enemies' strongholds unnoticed and take them out one by one.
The story of Arya Stark as a Faceless Man is complex. After arriving in Braavos, Arya enters the House of Black and White. Her training involves many things. She has to serve in different ways, sometimes cleaning bodies in the temple. She learns the art of poison and how to move silently. However, Arya struggles with completely becoming a Faceless Man because of her strong will and her desire for vengeance. She manages to blend the skills she acquires with her own identity and goals. She's not just a tool of the Faceless Men but uses their teachings to fight for what she believes in, like justice for her family. She's a very unique case among the Faceless Men trainees.
One great fanfiction could be 'Jon Snow's New Path'. In this story, Jon Snow discovers his connection to the Faceless Men in a very unexpected way. It delves deep into his struggle with his new identity and the powers that come with it. The author does a wonderful job of blending the mystery of the Faceless Men with Jon Snow's own character arc from the original series.
He could be recruited by the Faceless Men. Maybe they saw potential in him, perhaps his skills or his thirst for a new identity led them to approach him and offer him the chance to become one of them.
Arya might use her Faceless Man abilities to protect the common folk. She could disguise herself as different people and gather information about threats to the villages. Then she would act to stop those threats, like bandits or corrupt lords preying on the weak.
The combination of Jon Snow's character and the mystery of the Faceless Men. Jon Snow is a complex and beloved character from the original series. When paired with the enigma of the Faceless Men, it creates a lot of potential for interesting stories. His moral code and their amoral nature can lead to great internal and external conflicts.