At the edge of the universe, Lin Bo, the lonely guardian of the "Eternal Night Lighthouse", guards the final gateway to the taboo "Siren Route" day after day. The arrival of an uninvited ship broke the tranquility of his backwater. Young and stubborn pilot Ye Xinghang, in order to pursue the truth about his missing brother, vowed to break into the lost route that swallowed up countless lives. When the ancient "cosmic echo" sounded again, the two were forced to join forces. They faced not only the unknown horror deep in the route, but also the secrets sealed by time that could subvert the entire interstellar order.
