Brotherhood: Final Fantasy XV (2016)

Brotherhood: Final Fantasy XV is a miniseries that Square Enix made by taking out the most important part of the story that was in the game and releasing it as a separate animated series, which was a huge mistake that brought so many problems to the narrative of XV and for that reason it suffers because of that. If you played Final Fantasy XV - you'll notice that they don't give you any explanation of why Prompto, Ignis and Gladiolus follow Noctis and for that reason their friendship isn't explored all that much and it's hard to have a connection with the characters throughout their journey.