The narrative begins with a surreal confrontation between three demons—a lion, an elephant, and a raptor—and the presence of Sun Wukong, who has manifested "inside" the lion. The raptor identifies this presence as Wukong, noting that "The monkey is talking inside you." While the lion initially attempts to maintain a facade of control, declaring, "Let him talk... It doesn't bother me at all," the psychological and physical disruption caused by Wukong’s presence soon undermines his authority.
The lion’s strategy to regain control is centered on physical denial. He decides, "I'll stop eating," believing that by starving himself, he can force Wukong to "starve" as well. However, Wukong’s supernatural agility allows him to subvert this plan effortlessly. Wukong mocks the lion, stating, "I'll just turn one of my hairs into a stove," turning the lion’s own body into a site of internal chaos. The raptor warns that this will lead to the lion being "very hot" and suffering from uncontrollable sneezing due to the smoke, forcing the lion to realize that his attempts to expel the monkey through physical exertion or starvation are futile.
Escalating from mere annoyance to physical assault, Wukong begins to "practice my fighting skills" from within the lion's gut. The text describes the visceral reaction of the demon: "Wukong punched and kicked inside the lion. The lion fell to his knees. He moaned. 'It hurts! It hurts!'" This internal sabotage proves that the lion, despite his "throne," is powerless against the autonomy of the monkey king. Wukong leverages this pain to negotiate a safe passage for himself and his companions, forcing the demons to promise, "We promise," that they will allow them to "cross the mountain safely."
Despite the agreement, the demons reveal their duplicitous nature. The elephant whispers a plan to the lion: "When Wukong tries to come out of your mouth, bite him." This betrayal confirms the demons' lack of honor. However, Wukong’s heightened senses allow him to overhear the plot: "Don't they realize I can hear them?"
When the moment of exit arrives, Wukong prepares a trap of his own. Instead of emerging vulnerable, he presents his "iron bar." The result is a brutal lesson for the lion: "The lion bit down hard on the bar. Crack! A tooth shattered into tiny pieces." This act of defiance leaves the lion howling in pain, effectively breaking the demons' spirit and forcing them into a state of submissive apology. Wukong successfully exits through the lion’s nose, leaving the defeated demons behind.
The story concludes on an ironic note. Despite the humiliating defeat and the physical injury sustained by the lion, the demons’ obsession with their objective remains unchanged. As soon as Wukong departs, the elephant immediately begins plotting again: "I have a new plan for capturing the Tang Monk." This highlights the cyclical nature of the conflict and the relentless, almost obsessive pursuit of the demons despite their repeated failures against Wukong’s superior wit and power.