Monster System: Awakening Ghidorah at the Beginning

Monster+Choice+Funny+Irregular=? After World War III It's just that this world war is not between people. It is a war between monsters and humans against the aliens. In the year 2050, aliens from space invade the earth. Sleeping monsters all over the world wake up one after another to fight. In this war, the main force of monsters was almost completely destroyed. The astronauts suffered heavy losses and retreated from the earth. At the same time, the earth's environment has changed drastically. Various powerful radiations prompt humans to evolve themselves in order to survive! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.