A group of high-school students had an accident on their way to a trip and died but they find themselves in a classroom with a black sphere.

As leaders of their prestigious academy’s student council, Kaguya and Miyuki are the elite of the elite! But it’s lonely at the top. Luckily for them, they’ve fallen in love! There’s just one problem - they...

When spirits cross over into the human world, they can possess old objects and gain a physical form: a tsukumogami. Tsukumogami can be gentle, violent, or somewhere in-between, so the Saenome clan peacefully...

After humanity’s first manned mission to the Red Planet was lost, a second expedition arrives. The explorers prepare to exterminate the cockroaches that were used to transform the Martian environment but are...