It could be for artistic effect or to create a sense of mystery.
Sometimes, making cartoon eyes invisible is a way to focus the viewer's attention on other elements of the character or the scene. It can also be used to suggest a hidden emotion or thought.
Chapter 205, "The Fairy Descends to the Mortal World", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. Early on, Ah Fu had no idea what the video Jiang Li mentioned was.. By the end, Having such a sister certainly would bring happiness..
Chapter 110, "The Plow Ox CP didn't even start before it ended", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Jiang Li, carrying a wooden basin, walked over to the well.
Chapter 308, "Want me to surrender to him? Don't even think about it!", is the clearest early answer because it turns Aunt Ying's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Jiang Li sighed, "Where is your mind wandering?
Chapter 11, "She Smiled, He Panicked", is the clearest early answer because it turns Lin Manru's situation into a concrete plot event.
Chapter 92, "Why would a 19-year-old girl read this kind of book?!", is the clearest early answer because it turns Su Yinwan's situation into a concrete plot event. The chapter turns that into something concrete by moving from Jiang Li, lightened from any task, had plucked a few leaves from the...
Chapter 97, "Can This Really Be Broadcast?", is the clearest early answer because it turns Sister Li's situation into a concrete plot event.
Chapter 261, "They've Ruined the Entertainment Industry!", is the clearest early answer because it turns Director Sun's situation into a concrete plot event. The chapter turns that into something concrete by moving from The village chief's eyes nearly popped out after he heard the whole...
Chapter 5, "Catching Adultery Personally", is the clearest early answer because it turns Manager Fang's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Actually, when Manager Fang saw Jiang Li, he was somewhat surprised.
Chapter 512, "The Ultimate Rich Foolish Uncle", is the clearest early answer because it turns Youth Trainee's situation into a concrete plot event. The setup is An Jing would have been surprised if she could recognize him;
Chapter 139, "I Will Help You Chase Shang Shaojing!", is the clearest early answer because it turns President Shang's situation into a concrete plot event. The chapter turns that into something concrete by moving from Wen Jiaojiao's live stream was inundated with a wave of question...