Talk:Ensemble Stars! Master Guide/@comment-186.32.56.64-20151230190647/@comment-26480385-20151230191322

If you go to the story section, you can unlock one chapter per key. This is useful if you don't have a card for a sub story. Say, you don't have (Older Brother's Love) Rei Sakuma but want to unlock the Vampire Brothers, you can go to Rei's sub story and unlock it with a key.