The Girl of the Ultimate Weapon and the Day When Gods Disappear --- If you keep walking at the same pace as when you were a child, you'll be left behind in the adult world. --- Reality never waits for me gently; it always takes away what is important. Sasami-san's brief daily life with her new "family" comes to an abrupt end. To counter the threat posed by Hiromegumi, who has become a menace due to a conspiracy, the gods of Japan gather in Izumo. There, they discuss the "end of the world" approaching the Japanese gods and the countermeasures to take. And the "ultimate weapon" prepared at the cost of life by Juju is an unbearable existence for Sasami-san... The "generational change" that assaults Sasami-san, who doesn't want to grow up without trying hard. When people offer their prayers, even science can become myth. In other words, the gods this time are "aliens"!? The eighth installment of the series, which has been decided to be animated, is gaining momentum. The illustrations are done by Hidarite, who has also worked on the illustrations for the novel "Usotsuki Mi-kun and the Broken Ma-chan," the anime "Natsuiro Kiseki," and character designs for the game "Ayesha's Atelier: Alchemist of the Twilight Land."