Maybe it's to evoke certain emotions or tell a particular story. Sadness in a cartoon character can have many reasons behind it.
Well, a sad Mesi cartoon character could be created to show empathy, or to make a point about difficult situations. Sometimes, it's just a way to add depth and variety to the character.
The reason could be that the creator wants to explore more complex emotions through Mesi. It might also be to connect with viewers who have experienced similar feelings of sadness and offer a form of understanding or comfort.
Chapter 332, "Chen Ying's New Discovery, Xia Yuning, Good News Abound", is the clearest early answer because it turns Rodent Tide's situation into a concrete plot event. The chapter gives readers a real answer by opening on Snowy night, two kilometers north of Xia City, at the mountain wall. and ending on Is the captain suggesting that the reason there was a Rodent Tide....
Chapter 56, "Popular Host L God Actually Supports Jiang Li?!", is the clearest early answer because it turns Lei Shen's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Lei Shen originally had no idea about the trending topics on Weibo.
Chapter 276, "Integration of Soldiers and Hunters, Military System, and Roll Call Hunt (Part 2)", is the clearest early answer because it turns Cloud Dragon Army's situation into a concrete plot event. The chapter turns that into something concrete by moving from Knowing Xia Hong still had more to say, everyone showed no reaction... to I propose that the army consist of twenty people per team, with one....
Chapter 43, "How can sitting in business class be this uncomfortable?", is the clearest early answer because it turns Wen Jiaojiao's situation into a concrete plot event. It opens with The moment He Yun willingly sat next to Jiang Li and even took off...
Chapter 266, "Assessment Objective, Hell Level Difficulty", is the clearest early answer because Xiao Hen finally turns buildup into a real advancement. The setup is So scared before it even starts?" "Teams of a hundred, weapons, bows..., but the pressure keeps building through you can bring everything you can carry, and the Cold Beasts have....
Chapter 341, "Moao's Nine Towns, the Inspection System and Zhenyu, Li Hu and Hong Yuru", is the clearest early answer because it turns Hong Yuru's situation into a concrete plot event. The chapter gives readers a real answer by opening on Lu Yang struck the nail on the head, and Zhao Hu and Zhu Shun... and ending on In one of the rooms near the corridor on the second floor, Li Hu is....
Chapter 300, "Perseverance, Beast Tide Breaks the Barrier (Part 2)", is the clearest early answer because it turns Li Xuanling's situation into a concrete plot event. The setup is Everyone heard the words, including Yuan Cheng, and immediately..., but the pressure keeps building through Indeed, although the barricade is ten meters thick, it is still iron....
Chapter 294, "Empty-Handed, With Belated Realization", is the clearest early answer because it turns Wushuang's situation into a concrete plot event. The chapter gives readers a real answer by opening on The forty-eighth year of Longyou, June 21. and ending on But the Hanqiong 1000 seemed to appear out of nowhere.. In story terms, the chapter closes with It wasn't that they saw something terrifying, but the Cold Resistance Level from Great Xia had arrived;
Chapter 264, "Supplies Delivered, News from Long Mountain (3)", is the clearest early answer because it turns Great Xia's situation into a concrete plot event. A useful checkpoint is the way the scene starts with He has been stationed in Longyou for over twenty days now, and he... and follows through with Big brother's foresight is indeed sharp; these two truly are....
Chapter 324, "Early Drills, Surge in Cold Resistance Level Members", is the clearest early answer because Zhu Yang finally turns buildup into a real advancement. Early on, After Xia Chuan's two-month-long transformation, the outer city has.... By the end, If you want to die, go ahead, but I'm not joining in your madness."....