The fairy tale follows a young man named Budori Gusuko in the Tohoku forests of northeastern Japan in the 1920s. After an onslaught of droughts and natural disasters, Budori is forced to leave his home and search for a better life elsewhere. Budori joins a group of scientists at the Ihatov Volcano Department, which deals with the same natural disasters that drove Budori from his home.

After years of war against the monstrous kaiju, the world finally knows a time of prosperity and peace — but the presence of the kaiju can still be felt. Girls with the souls of kaiju are born every so often, and each is gifted with the unusual abilities of kaiju! An organization called GIRLS has collected the Kaiju Girls to defend the earth, but rising from the shadows comes BLACK STARS, a troupe of evil Kaiju Girls who just recruited their latest — and somewhat bewildered — new member…

Fifth season of .