The Second Young Lady Is a Secret Agent: The Poison Consort Is So Charming

After transmigrating, she becomes a lazy little freeloader in the countryside. What? Her older sister has died suddenly, and now they want to hand her over to a pervert as a plaything too? This shape-shifting little devil becomes a master of disguise, hunting down her sister’s killer. The vice minister of war picks on a helpless orphan with no parents? I’ll bring your whole family to ruin! The chancellor’s son is a pervert? I’ll make sure you die horribly. Wait, isn’t the heir apparent supposed to be a sickly good-for-nothing? How is he so powerful in secret?