So what do you do when you run across a terrible (I mean terrible) Japanese visual novel with mediocre artwork and ridiculous costumes that can’t possibly exist in real life? Why, cosplay it, of course!
Alena’s Archangel Michael wings are articulated and covered in real feathers. They expand to about a 12-foot wingspan. (Tutorial here.)
Laura’s Mephistpheles wings are structured like actual bat wings, and also expand.
Mark’s Wolfgang Zaberisk wig walkthrough here.