Within Walls

Extraterrestrial visitors "melted" the North and South Poles, sea levels rose rapidly, and creatures in the sea mutated inexplicably. Humans had no choice but to build high walls to hide inside. However, as time went by, some people were not willing to stay inside the walls for a lifetime, so mankind's first mecha was born - 'Adam'. It represented mankind and walked out of the wall, showing mankind's will to resist to extraterrestrial visitors. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.