Not My Isekai...

In another world unknown to you, the Queendom of Libritannia and the surrounding territories are under strife... political under-handing, the threat of war, occasional lawlessness... Oh and don't forget the fact that literal angels are falling from the heavens and are becoming corrupted by something. So, this world needs a hero, the thing is: that's not you, it's your childhood friend... yet you both have been transported to this world. The question is: “Why are you here?”