It could represent a form of rebellion or a way to show inner turmoil. Maybe the character is going through a tough time and smoking is their coping mechanism.
Often, a sad boy smoking in a cartoon is used to convey a sense of isolation or a lack of positive outlets. It might be a commentary on societal problems or a way to evoke empathy from the audience for the character's situation.
A practical answer is Chapter 50, because it turns the idea into a concrete scene. The chapter opens with [666, if good scores determine rankings, is Flash Change's production team..., adds pressure through I wouldn't wear such ugly shoes!, and ends on What kind of heavenly being had such a sour.
The best chapter pointer here is Chapter 84, "Is it Just About Having Hands?". It opens with When the villagers tasted his curry beef one by one, their faces revealed... and closes on Why am I tasting sand in my mouth?" Wen Jiaojiao's bravado gradually....
Chapter 80 is the strongest chapter-level answer because it starts from Jiang Yan and Wen Jiaojiao, one so smug he was almost ascending to the... and follows through on arrogant princess with Princess Disease, I'm totally for it, fam.] [Hahaha....
If you want the clearest chapter reference, go to Chapter 54. Early on, Five minutes later, the people of Chixia Village, who had received the...; later, the chapter leans on Leading them was the village chief himself..
Chapter 87 is the strongest chapter-level answer because it starts from Luckily, at that time, Jiang Li had already taken her pot of stinky... and follows through on I'm driven crazy by him every day.] [+1 from above!.
A practical answer is Chapter 53, because it turns the idea into a concrete scene. The chapter opens with Night had fallen over Chixia Village, eerily void of any human sounds., adds pressure through How does she manage that?] [Now, I really think all the negative press..., and ends on Wait, did.
Chapter 65 is the strongest chapter-level answer because it starts from Several minutes later, the room remained silent. and follows through on What's the deal with these two?.
Look to Chapter 55 for the clearest answer. It begins with Su Yinwan hadn't expected that, in just one day, Jiang Li's reputation had..., keeps building through Yet she was clearly the wretched cannon fodder of this book., and lands on He Yun's fans were immediately displeased..
The best chapter pointer here is Chapter 53, "Save People!". It opens with Night had fallen over Chixia Village, eerily void of any human sounds. and closes on Wait, did this kid accidentally fall into the water?] [Help, this camera....
Look to Chapter 79 for the clearest answer. It begins with Jiang Li leisurely said, "I bought this weeding machine, and according to..., keeps building through He, himself, had just finished weeding a piece of land, and to top it off,..., and lands on Um..." Wen Jiaojiao bit her lip, "Could you.