Urgent! His Majesty Has a Secret Ailment. Should I Treat Him or Not?

[Transmigration]+ [Sweet Romance]+ [Mutual Exclusivity] Lu Yiwan, a male doctor specializing in andrology and trained in both Chinese and Western medicine, transmigrates into the body of a woman at the very moment the original owner accidentally falls into a lake and drowns. Three years ago, she married into the Changning Marquis's Manor to bring good fortune. Now that the heir, Song Qinghuai, has recovered, he turns around and plans to marry his childhood sweetheart, the eldest legitimate daughter of Grand Tutor Pei. Hmph. Since the marquis's household is ungrateful and even wants to wipe her out, she certainly won't let them have their way. Marry your beloved, then. I won't stop you, but I can make sure you never have children. And don't even dream of a happy marriage. On Song Qinghuai's wedding day, Lu Yiwan does everything she can to get close to Su Ziyu, heir to the Duke of Jingguo and cousin to the Crown Prince. Little does she know that this young lord Su is actually Crown Prince Gu Yuan in disguise. When Lu Yiwan hears that the heir to the Duke of Jingguo is about to marry, she happily settles her accounts, packs her belongings, and plans to slip out of the capital to live a carefree life in Jiangnan. Just as she is about to set off, she never expects the Empress Dowager to summon her in person, claiming that the emperor has a hidden ailment and only a physician from Huichuntang can treat it. Seeing the emperor's face, so strikingly similar to Su Ziyu's, Lu Yiwan panics... “I hear you can treat hidden ailments? As it happens, I have one. Treat me, will you? Preferably by using yourself as the bait...”