[A Love Live! x AKB0048 Fan Fiction] DES has found a portal that will lead them to the past, back to when Earth was still intact, the year of 2013. And they will do anything to exterminate idols before they become the rogue group they despised. However, Muse member Kousaka Honoka is here to defend the planet from the clutches of DES, as part of her mission given to her from Sensei-Sensei. Will she hold out? Will there be someone to help out? What's her true identity, and why is she affiliated with AKB?