The Villain's Sweet Little Wife in the Seventies

Jiang He woke up to find herself as a cannon-fodder villainess in a melodramatic novel, doomed to a tragic ending. Staying alive was what mattered! Win over the main villain and change her fate! She’d heard he could kill in the blink of an eye, without hesitation. Right now, that very villain was doing her laundry. She’d heard he was violent by nature. Right now, he was kneeling on a washboard. “Honey, I was wrong.” Jiang He smiled happily. Winning over the villain wasn’t so hard after all. Suddenly, the man’s hoarse voice came from nearby. “Honey, I’m hungry...” Jiang He begged for mercy: Who can tell me how the main villain got so much stamina?