Bailiff Kane is commissioned to investigate the mysterious death of genius gearmaker Elias. He sneaked into the memory core of the "Whispering Teeth" code-named 1975, and in the fragmented and chaotic memory maze, he gradually uncovered Elias's ongoing secret project - the "Key to Resonance". As the investigation deepens, Kane discovers that Elias's death was not an accident, but a huge conspiracy. Not only does he have to fight against the deadly mental trap in the memory core, but he also has to evade the pursuit of the Time Keepers Council in reality. Eventually, he discovers that the true purpose of the "Resonance Key" is not control, but to prevent the Great Wheel from self-destructing due to a fatal flaw. Kane must make a decision that affects the fate of everyone before the city is destroyed.
