Chapter 18: Top-Tier Biochemical Weapon! Li Shimin slapped his thigh. "Exactly!" "I knew he had to be a Daoist recluse! This 'niangpi' must come from the idea of 'brewing the essence of heaven and earth'!" "Sizi is still young and her speech isn't clear yet. She must have mispronounced the word for 'brewed' as 'mother', leading to this misunderstanding." The ruler and his two ministers looked at each other and smiled, sharing a sense of accomplishment that great minds think alike. Now…