Doomsday overlord Shen Tang unexpectedly transmigrated into ancient times, inhabiting a miserable woman with the same name. The original host poured all her efforts into supporting her husband, Lu Chengze, in passing the imperial examinations, only to end up framed for adultery and drowned to death miserably, while her five-year-old daughter also suffered abuse from the servants. Reborn, Shen Tang relies on her doomsday psychic abilities and a space filled with supplies and weapons to systematically settle accounts with everyone in the Lu family for their evil deeds, making the ungrateful top scholar and the harsh, wicked mother-in-law pay a painful price.