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...

A mysterious boy lies naked and unconscious on the street. The story begins when ninth-grader, Ai Oomori, and his third-grader brother, Seigi, find him. This boy has no memory of the past and doesn't even know...