The story tells about Amy who lived with her estranged sister, Erta. She tried to discover the source of the strange phenomenon that happen on Earth. No sun shine in the sky, sky gets darker in every passing day. That day was the celebration of New Year festival, Amy noticed that Erta went missing which she discover that Erta was kidnapped by a behemoth. It turns out that Erta had the ability to control mirage and illusion. These behemoths use her to open the portal to mirage world and summon Mirage, their master and commander to turn their world into the same world where Mirage was summoned to summon more monsters to destroy their world. Will Amy save her sister and destroy Mirage before he could turn her world into Mirage world?  This story is told from her perspective as standalone story