Don't Flirt with the Thousand-Gold Formula! It's Jealous of My Reincarnation

Fantasy Romance: After transmigrating to the Tang dynasty, the System gives me only 49 days to study the Essential Prescriptions Worth a Thousand Gold Pieces and keep myself alive. Wait, is the author of this jealousy-ridden book the Medicine King who’s been pursuing me for fourteen lifetimes? His soul wound was caused by me. Why does saving his life mean defying heaven? It isn’t until my memories return that I realize... Oh, he’s the “Founding Medicine Ancestor” from ten thousand years ago, the one who got so jealous when I glanced at another spirit butterfly that he refused to water me for three whole days. He’s also the one who personally awakened me a thousand years ago, only to watch helplessly as my soul scattered beyond saving. Now the Heavenly Dao has brought down its punishment. The plague is the backlash he endured in my place, and famine is the leverage used to force him to yield. I clasp his trembling hand and look up at the pitch-black sky screen. “You raised me and protected me before. This time, I’ll care for this world and keep you safe.” “This quack of a Heavenly Dao can take its punishment notice and shove it. We refuse to accept it.” It turns out the deepest medical advice takes ten thousand years to write one sentence: “I love you.” 【Jealous Master × Hardcore Wellness Expert | He shatters his soul to pursue his wife, she tears the Heavenly Dao apart】 【System + transmigration + medicine + reincarnation + history + xianxia + sweet romance + jealousy + natural disasters】