Synergetic | 2017 | 101 min | Not ratedIn a distant future world, humans have received longevity but lost their fertility, and are nearly extinct by population decline. The protagonist, a cyborg explorer, enters an underground world where artificially created species live. His mission is intended to research for their secrets of reproductivity. As the story goes on, it becomes gradually clear that the underground world is a kind of dystopia where dangerous monsters roam or ambush, and that the artificially created intelligent species developed a unique society.Click for More Details & Customer Reviews