80s Marriage Swap: My Should-Be-Dead Husband Lives On

Sang Yu unexpectedly transmigrated into the body of a cannon fodder female character in a period novel. As soon as she opened her eyes, she was faced with the female protagonist Song Jiajia snatching her husband. Sang Yu recalled that her cheap husband would die in the line of duty soon, so she agreed without hesitation. Anyway, once he's dead, she'll be free. As a result, before she could become a widow, she found herself pregnant. —— Female protagonist Song Jiajia, holding a rebirth script, made it her first priority to steal the husband of her timid cousin Sang Yu. In this lifetime, she is a wealthy individual, and Sang Yu was meant to replace her as a widow. But as the days went by, how come the man who was supposed to die is still alive?