Itou Seita was meant to be an ordinary college student, but he suddenly found himself in an anime-like scenario when five girls—an alien, a little sister, a childhood friend, a tsundere, and a fiancée—appeared in his apartment and decided to move in with him. Is this your standard harem, or is there something else happening behind the scenes? Hira**** Aya, a formerly popular but now disgraced and unemployed seiyuu/idol, receives a generous proposal to voice the lead role, magical girl Killemall, in a production by a mysterious animation company. But is that company hiding certain secrets? Finally, how do these two stories connect to lead to a perfect harem ending?