User blog comment:Tetsuya Ookami/Potential MMO?/@comment-4917660-20120703150534/@comment-5172218-20120703202134

True Angels will become Fallen Angels if they do something bad but if you read near the end of Vol.12 at Baka-Tsuki it is mentioned that since God is gone, there is now loop holes in the system. So for people who would make a Angel character proprobly won't have to worry too much about thier character becoming a Fallen Angel unless the makers of the game make a means for Fallen Angels to become Angels again. But if they did make a MMO they proprobly will start with Devils and add Angels in a later update/DLC or in a later game.