The world is full of little bugs and is built on a perilous balance that can collapse at the slightest misstep. Junior high school student Mizuho Taue is somehow chosen by God and given the task of repeatedly making time leaps to stop the world from collapsing. Together with Apka, an unreliable messenger of God, she struggles to save the world. The comedy of junior high school student Mizuho's salvation efforts begins.