Is it part of a larger franchise? (Meaning other derivative works existing in anime / manga / videogame / other form.)
Well, it has a videogame as well as a manga, so I will say yes
Is there a movie adaptation or was it derived from a movie? (Either / Or)
There's a movie sequel of sorts, which was only about 30 minutes long, but doesn't count as a OVA, ONA or special, hence the technically
Is it on the TV Tropes Fantasy Anime & Manga page?
Is it from Fairy Tail?
Does the hint refer to the song? Is the anime a spin-off? Is this anime well known?
Yes, no, subjective hint is subjective, but no.
It's not the Familiar Of Zero is it?
Does the song have anything to do with the signatory of the poster that has posted this post?
I'm an atheist so that's a no.