After the natural disaster, all that was left in the world were broken walls and a group of survivors wandering among the ruins. Guichen, this young man who once survived in the darkest corner of civilization, embarked on a journey to find the "second sunrise" with a mechanical bird that could tell lies. Information between city-states was artificially cut off, and lies and fear filled every corner. Some people say that whoever can light the beacon of a new era can reshape the world. But Guichen's real goal is to uncover the truth about the lost civilization - a past that everyone is desperately trying to forget.
He needs to make a choice between trust and betrayal, and distinguish between truth and falsehood between cruel reality and false hope. Every splicing of clues is a test of the limits of human nature; every traveler may be the person behind the scenes. The shattered world is waiting for rebirth, and what Guichen has to do is to find real hope in the ruins - even if that hope is originally a lie.