Jiao Wukong is a sea creature, and his thoughts are simpler than others'.
For him, if he pledged loyalty to Chu Yuan, he must be completely devoted, or else the terrifying Wheel of Life and Death that belonged to the heavens would cause him to tremble in fear of his impending death.
He immediately affirmed his loyalty.
"Speak." Chu Yuan said.
"Under the sea, I discovered an ancient city buried deep within, offering it to Your Majesty as a token," Jiao Wukong humbly said.
"A city buried under the sea?"
Someone frowned and said, "Being a city buried at the sea's depths, why did you, Jiao Wukong, not explore it earlier instead of only now?"
Where there are people, disputes arise. Obviously, some questioned Jiao Wukong's motives when he expressed his loyalty.