After living living her life until she was old and grey. Poison expert Lihua Lei died peacefully at an old age, surrounded by those she love. Expecting to rest in peace in the afterlife, Lihua Lei finds herself not in heaven, but instead her soul transmigrated into the body of a young 18 year old who died full of hatred and regret. The young girl's name is also Lihua Lei. She is the neglected legitimate daughter of the Prime Minister. Having been betrayed by her half sisters, Lihua finds herself poisoned, kidnapped and left for dead inside a cave for the animals to feast on her dead corpse. Lihua swore a death oath for revenge and found another soul replace her's as her soul starts to fade. "In exchange for giving me your body and letting me live a second life. This grandma promises to fulfill your last wish and take revenge on those who wronged you. To the littlest disagreement to the biggest betrayal, this grandma promises to pay them back tenfold so your soul can rest in peace." Grandma Lihua promised the young Lihua. "This grandma has already lived a life full of hardship and knows the sweet taste of peace, so this grandma isn't afraid to let them know what Lihua Lei's true colors are! This old grandma will show them not to mess with Lihua Lei!"

Once there was a girl, daughter of an Alpha, who happened to face consequences of the things she had no control over. How? By being ostracized from her own kind. By being betrayed by her own family. By being rejected by her own soulmate who chooses her sister instead. And by being banished from the Kingdom. As she returns after years, she notices several changes. One of them being the demeanor of her mate.