

Donald Chester was tricked by his mother and younger brother's family into staying in the same household, leaving his wife and daughter at the mercy of the Chesters' abuse.He spent his life breaking his back in the family feed mill, only to be cast aside when it finally went public and made a fortune—dying in misery. Traveling back to 1988, Donald decisively split from the family and took his wife and daughter back to live in the countryside—only to discover that the fields and ponds are overrun with crayfish, a scourge to the villagers.Donald resolved to make a fortune for his own family by selling crayfish and forging a path to prosperity.

Modern elite assassin Morgan Calud dies and transmigrates into a woman with the same name. After Morgan's father died in battle, her mother disguised her as a boy from birth so they could maintain their position in the Calud family. As Morgan grows up, she yearns to reclaim her female identity but fears that discovery would mean death for both her and her mother. Planning to escape with her mother before her secret is exposed, Morgan is unexpectedly noticed by Shane Burke—the Aetheria Dynasty's only duke with a different surname, a man of overwhelming power and ruthless temperament. He brings her back to his estate, and from then on, she must outwit him daily just to survive.