I cringe so hard at idol music that I just want to lie down and die. However my MC in Sleeping Princess loves that stuff to death and I don't understand why.
No armor in a fantasy story? I just don't find people all bulked up... cool. I know it's unrealistic but geez... visually armor does not look appealing to me.
I've thought about it but the thing is when you write fanfic the idea is usually based around the world. I usually just start from scratch but use the characters I made into a brand new setting.
If you have a great idea, go for it! I'm sure it'll turn out great!