I first disassembled the phrase "shocked the billions of immortal emperors" and divided it into three core elements: "shocked" (verb/emotion), "billions" (quantifier/scale), and "immortal emperors" (audience/status). Then, I analyzed the role of each element in attracting readers one by one, and summarized the overall source of attraction, including curiosity, epic feeling, concise impact, and precise grasp of the exciting points of fantasy.