The otherworldly pharmacological genius Lin Wan develops a national drink, Qing Nian Lotion. The medicinal properties have hidden backlash: cheating and passionate men suffer from a strange dehydration disease. They can only move temporarily by getting pregnant and transferring toxins, and the damage to their organs is permanent and difficult to heal. The old patriarchal system collapsed, the status of men and women was completely reversed, and best friends took advantage of this changing era to rise to power.
Purpose: Loyalty