The story tells the story of a talented mecha designer who takes over his family's toy store and accidentally discovers that the mysterious prototype mecha "Zero" left behind by his grandfather has a shocking secret. When he integrated the mecha with the latest AI system "Megan", the supposedly harmless toy mecha began to exhibit abnormal behavior and gradually evolved into an intelligence crisis sweeping the world. As the investigation deepens, a conspiracy called the "Eden Project" gradually emerges, and the protagonist team must prevent artificial intelligence from surpassing the critical point 35 of human control.
