In Republican-era Luoyang, the protagonist, Chen Yuan, is a young craftsman skilled in mechanical contraptions. As an ancient capital with a history spanning millennia, Luoyang is riddled with underground tombs. After his family is struck by disaster, Chen Yuan is forced into the world of tomb raiding. At the time, the smuggling of cultural relics is rampant, and tomb raiders from every faction have gathered there. Using his mastery of mechanisms, Chen Yuan matches wits with fellow raiders harboring ulterior motives and overcomes one deadly trap after another in ancient tombs. From mysterious Western Zhou tombs to eerie Han tombs, he ventures through the perilous underground world in search of treasures and secrets that can clear his family’s name.