Introduction: Zhang Tianyou, heir to the ancient dragon-seeker lineage, enters the world of tomb raiding as a live-in son-in-law, maneuvering among the four great families. His journey leads him back to the Tide Tomb, a place of mystery from twenty years ago. Through deadly mechanisms, thread puppets, hallucinogenic poisons, restless spirits, and a woman's coffin, he pieces together the truth that will change everything.