Guilty Gear Xrd -SIGN-

This trophy is for finishing the Story mode. No skill involved at all, just time (several hours). You have to watch the entire story to unlock this, and you have to let it play out, which it will do all by itself. At each chapter you will have the option to save and continue or continue without saving or save and quit, I would suggest saving and continuing at each step so that if it powers off or anything else your spot will be saved. Since I didn't care much about the actual story I would turn Story mode on and then do something else while it played out. I didn't time it out but my guess is the story has a total time of about 5 to 6 hours.