The darkness isn't past yet. The peaceful days turn out to be short-lived as the shadow of another Selector Battle looms large. Mizushima Kiyoi is the first to notice that things are amiss, and she makes her move to put an end to the cycle of darkness.The Battle this time includes a new card, "Key" and has been set up with rules different than before. The Selectors gather once again. Hopes, memories, and the key. The final battle with everything on the line begins now!