There are too many female protagonists with deceased husbands in the Qin Dynasty's Past Books.

Jiang Mo never expected that after crossing into the perilous world of Qin, he would become nothing more than a corpse puppet—a disposable pawn in a game of thrones. But survival is a gamble, and in this land where every shadow hides a blade, he stumbles upon his only lifeline: the "Book of the Past," a dungeon strategy system born from the very game that once devoured his free time. Now, all he has to do is step into ancient, sealed memories and explore their darkest corners. The rewards come easily, but so does the danger—because in this world, the past is never truly dead. His first descent takes him to the untouched wilds of Baiyue, where he seeks out the hauntingly beautiful Yan Lingji. Claiming the role of her sworn younger brother, he weaves himself into her life as a childhood companion—but the bond she forges is far more sinister. When she secretly implants the Eternal Bond Gu into his heart, Jiang Mo is left with no choice but to burn his own flesh and carve out the parasite with a blade, severing the connection in a shower of ash and blood. Next, he dons the mask of a common thief and slips into the cursed halls of Fire Rain Manor. There, his quiet infiltration shatters when the young and watchful Hu Meiren catches him red-handed—and he responds by stealing the manor's most guarded treasure before her very eyes. He becomes the butterfly that awakens Xiaomeng's enlightenment, the mysterious master that Jingni has spent a lifetime chasing. Every dungeon unravels a new thread of destiny, and every step Jiang Mo takes drags him deeper into the tangled web of a world where love and betrayal are the same coin, and the past always demands a price.