Junk Head

In the distant future, the Earth's surface has become so polluted that it is uninhabitable. Humans begin to develop underground, creating artificial life forms to do the labor. Unexpectedly, the artificial life forms rebel against humans and take over the underground world. Later, facing the plight of losing their reproductive abilities, humans decide to venture into the underground world again to find the lost genetic code "Reproduction." Ponta, who was laid off from the dance studio due to a sharp decline in the number of students, is chosen as the hero of the expedition. He goes alone to the underground world full of unknown fears, and an amazing adventure begins.