Wukong is on his journey with Tripitaka, Zhu Baije, Sha Wujing, and Ao Lie. After their last mission he’d killed a group of bandits, and Tripitaka was definitely not impressed, and punished him using the tightening spell on his circlet on his head

“I’m sorry, okay!? Im sorry!”

while this was happening, Wukong’s past friend Macaque watched from the treetops