Transmigrated to a Famine Year as a Fake Heiress, I’m Unstoppable with My Leather Patchwork

Li Jingshu died suddenly after staying up all night and became the vicious supporting character, a fake heiress. The moment she opened her eyes, she found herself in a nightmare from the start. Cast out by the Marquis's household, she faced three years of famine. The villagers ate wild roots and chewed tree bark. Her parents were sickly, her brother was disabled, her sister-in-law was at death's door, and her little nephew was about to be pushed by the original owner into the hell of cannibalism... With her whole family about to die just as they did in the story, Li Jingshu tore up the script! Luckily, I have a ridiculously powerful golden finger: the Skinpinpin System Shop. I'm invincible now! I've got food, meat, and medicine, all of it! While others gnaw on tree roots, I eat hot pot, barbecue, burgers, and malatang... While others have no water to drink, I have cola, Sprite, malt beer, and kvass... While others starve and freeze in the snow, I have down jackets, padded coats, electric blankets, and silk duvets... She serves up face-slapping to the ungrateful Liu Xiucai and the Marquis's household, then leads her family to turn the tables during the famine. She brings home a sweet, amnesiac little brother. Wait, why are this stray puppy's eyes getting more and more intense...? Then one day, soldiers surround the house and kneel in a crowd, shouting, “We respectfully welcome the Crown Prince back to the palace...” Li Jingshu: ??? Is it still too late to run? But the Crown Prince takes her hand, his gaze burning. “Sister, you stole my heart and my innocence. And now you want to leave? I'll offer you the whole kingdom as your bride price. You should be my empress.” [Post-apocalyptic famine + earning money and leveling up + System shop + devoted puppy-like love interest + satisfying face-slapping] See how the fake heiress turns things around after a disastrous start, delivering face-slapping and leveling up all the way.