Well, there could be various reasons. Maybe the boy was under some kind of illusion or was forced into it by some external factors. Or it could simply be a comical mistake made by the author for the sake of humor.
The boy mistakenly getting a boob job in the comic might be due to a series of unlikely events. Maybe he was given wrong information or was in a situation where he couldn't clearly understand what was happening. It could also be a part of a wild and wacky fantasy world the comic is set in.
Chapter 131, "This Lady is Here to Travel", is the clearest early answer because it pushes Shu Yan into a new phase or setting. It opens with Just around mealtime, Director Sun came over pushing his small food... and closes on Hungry, they no longer cared about their appearance, quickly washed....
Chapter 208, "Those Who Commit Many Wrongs Will Destroy Themselves", is the clearest early answer because it turns Su Yinwan's situation into a concrete plot event. It opens with Jiang Yan clicked his tongue, "What's this about money?
Chapter 343, "Five Cycles of Bone Tempering, 1,000 Zong Bone Burning in the Visible Yang Realm (Part 2)", is the clearest early answer because Bone Tempering finally turns buildup into a real advancement. The chapter gives readers a real answer by opening on Next is the Small Ancestral Spirit Tablet, which not only adds a... and ending on But to his utter surprise, by this time it was already too late!.
Chapter 306, "Helplessness, Shifting Loyalties, Total Annihilation and New Territory (Part 2)", is the clearest early answer because it turns Li Xuanqiu's situation into a concrete plot event. The chapter gives readers a real answer by opening on All right, listen to the leader and go ahead to keep watch!" Although... and ending on The boy is simply too young, too cautious, afraid of everything..
Chapter 323, "Approaching Labor, the Talented Xiao Family Assembles Urgently", is the clearest early answer because it turns Xiao Yuan's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Lin Lan spoke more and more proudly, and the three women beside her... and follows through with Big sister, our Great Xia's number of Cold Resistance Level should be....
Chapter 318, "Transformed Li Xuanling, Reform, 9th-Class Viscount (Part 2)", is the clearest early answer because it turns Li Xuanling's situation into a concrete plot event. The setup is At this moment, tasting it herself, she finally realized just how..., but the pressure keeps building through It wasn't just about the taste.. Once the chapter lands on But soon, she was startled awake by a large hand reaching under the..., the chapter closes with "Not just Long Mountain;
Chapter 305, "Twists and Turns, Severed Arm and Head, Forced Withdrawal", is the clearest early answer because it turns Longyou Army's situation into a concrete plot event. The chapter turns that into something concrete by moving from Chen Yingyuan, go, quickly return to the main building!" Xia Chuan... to At this moment, Xia Chuan wasn't stuck between a rock and a hard....
Chapter 53, "Save People!", is the clearest early answer because it turns Is Jiang Li's situation into a concrete plot event. The chapter gives readers a real answer by opening on Night had fallen over Chixia Village, eerily void of any human sounds.
Chapter 323, "Approaching Labor, the Talented Xiao Family Assembles Urgently", is the clearest early answer because it turns Xiao Kangcheng's situation into a concrete plot event. The chapter turns that into something concrete by moving from Not to mention those second-generation disciples, even Xiao Kangyue... to The Dragon Martial Army was able to form quickly because of a large....
Chapter 118, "Director Sun, When Did You Get a Barrage Above Your Head?", is the clearest early answer because it turns Shu Yan's situation into a concrete plot event. A useful checkpoint is the way the scene starts with At 8 in the morning, several guests appeared on time next to the...