Maybe those words are like a code or trigger that activates some sort of deadly curse or magic. It's a common plot device in fantasy novels.
Well, it could be that the words reveal a secret that powerful forces don't want known, and so speaking them leads to death as a punishment. Or they might be part of a forbidden language that has dire consequences when uttered.
Sometimes, in novels, certain words spoken mean death because they are tied to an ancient prophecy or a dark pact. The characters unknowingly invoke a fatal outcome when they say those specific words.
Chapter 10 is the strongest chapter-level answer because it starts from Qiao's shocked face struggle to recover, Lin Manru also tasted for the... and follows through on Who was it again saying that the Jiang Family's tradition was lacking,.... The payoff is that the chapter closes with "She...
Chapter 564, "Why Only 80 Points?!", is the clearest early answer because it turns Didn's situation into a concrete plot event. The chapter turns that into something concrete by moving from Miss Jiang, what do you need this time?" He Pingzhang's tone was not...
Chapter 584, "The Wealthy Young Master Renounces Worldly Life for Love", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event. The chapter turns that into something concrete by moving from There wasn't a mirror on the small boat.
Chapter 938, "When Did the River Moon First Illuminate People? [Extra · River Moon Chapter]", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event.
If you want the clearest chapter reference, go to Chapter 4. Early on, Qiao regretted her words as soon as they left her mouth.; later, the chapter leans on Whether Jiang Yan can be found or not was another matter..
Chapter 924, "Competing to Auction Themselves", is the clearest early answer because it turns Jiang Shixu's situation into a concrete plot event. The chapter turns that into something concrete by moving from Not only did the netizens feel like they were on a roller coaster,...
Chapter 628, "It's Time for Them to Show Themselves!", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. Early on, What are you fantasizing about?" Bai Lu looked at him incredulously,....
Chapter 627, "Definitely Not an Accident", is the clearest early answer because it turns Jiang Cheng's situation into a concrete plot event. A useful checkpoint is the way the scene starts with He looked at the sinister smile lingering in Jiang Li's eyes, then at...
Chapter 675, "The Hope of the Jiang Family", is the clearest early answer because it turns Jiang Cheng's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Mother and daughter clung tightly to each other as they chatted and...
Chapter 865, "His brother is your ex-boyfriend, right?", is the clearest early answer because it turns Chen Nanyu's situation into a concrete plot event. It opens with I looked at your compatibility chart. and closes on But it wasn't long before Jiang Meng noticed Chen Nanyu's....