After being suddenly transported to another world, Subaru Natsuki and his new female partner are brutally murdered. However, Subaru awakens to a familiar scene, meeting the same girl again. The day begins to mysteriously repeat itself.

When a kingdom is taken over by tyrants, the deposed princess begins a quest to find a disbanded group of evil knights to help take back her realm.

A high school girl suddenly reincarnated as a lowly spider in a dangerous fantasy world must use her human wiles and relentless positivity to survive.