Yanbo is a white monkey and one of three brothers originating from the Land of Tigers, understood to represent China. He embarks on a westward journey toward India alongside his siblings, Ninbo and Tonbo, motivated by their shared objective to reunite with their parents. Throughout their travels, Yanbo and his brothers engage in episodic adventures that include communal activities like consuming crow soup, inadvertently causing a mountain fire, and participating in a race against the king of the Pig People. These events illustrate collective experiences and challenges during their expedition.

The narrative maintains a group focus on the three brothers undertaking the journey together. Yanbo also appears in a traffic safety short film spin-off featuring his brothers and a fox character. In this story, they accidentally travel through time to modern Japan and learn about traffic safety. This film remains inaccessible online or through official releases, with no documented specifics regarding Yanbo’s role or actions within it. Yanbo’s background, motivations, and experiences are confined to the original 39-episode series and the noted spin-off film, without expansion into other official media like movies, OVAs, additional seasons, or expanded universe content.