It's likely not a true story. Usually, such works are based on imagination or inspired by various ideas rather than real events. The plot and characters might be crafted to engage the audience rather than being based on facts.
I'm not entirely sure what specific 'infidel real story' you're referring to. 'Infidel' can have different meanings in various contexts, such as in religious or historical contexts. It could be about a person who is considered a non - believer in a particular religious or ideological system. Without more information, it's hard to say exactly what the story is about.
The 'infidel true story' could be about many things. It might be a story of someone who is considered an infidel in a particular religious or cultural context and their journey. It could involve their struggles, beliefs, and how they are perceived by others in that society.