Sjabloon:Icons Sjabloon:Quote Er is een kringloop in sjablonen geconstateerd: Sjabloon:Earth character infobox Master Yu is an Earthbending master and a resident of the upper-class Earth Kingdom town of Gaoling. He is the manager and primary instructor of the town's Earthbending academy. He later however becomes a bounty hunter, searching for Toph.
Yu was hired by Lao Bei Fong to train his daughter, Toph, in Earthbending. However, he only taught her basic moves as per Lao's instructions regarding his daughter's safety. When receiving a free first lesson from the academy, Aang is quickly beaten by a younger student, and Master Yu suggests that Aang pay for a year of lessons and that if he pays in advance, he'll bump him up to the next belt. This suggests that he is more a businessman than true master, as this is a common practice among less-than-reputable martial arts schools. He is later hired by Lao Bei Fong to retrieve Toph, alongside Xin Fu.
In "The Desert," they reach Misty Palm Oasis at the edge of the Si Wong Desert on the trail of the Avatar and Toph. Master Yu appears to be the more level headed of the two; he reminds Xin Fu (who mistook the bounty as dead or alive) that Lao Bei Fong wants Toph alive. Xin Fu temporarily changes their target to the fugitives Zuko and Iroh to collect more bounty. Ignoring Master Yu's advice, Xin Fu directly confronts the fugitives but the White Lotus member turned all the desperate men in the bar against them. Although outnumbered, Master Yu and Xin Fu dealt with them easily with their impressive Earthbending skills, but in the confusion the fugitives escaped. They searched the whole town but to no avail, finally going back to tracking Toph and the Avatar. They succeeded in capturing Toph at the end of "The Earth King", luring her into a trap with a forged letter from her mother. In "The Guru", Master Yu is captured by Toph in the very metal box he imprisoned her in. He is not heard of again for the rest of the series.
Master Yu is shown to a proficient Earthbending master, and is well known in Gaoling for his abilities. He appears to prefer a more subtle, conservative approach to his Earthbending, as opposed to Xin Fu, who relies on brute strength. Instead of crushing people with large rocks, he will sink them into the ground, which requires much less effort.
- Master Yu appears in "The Blind Bandit", "The Desert", "The Earth King", and "The Guru." According to the leaflet from his school in The Blind Bandit, Master Yu's name is written as 余師傅 (yúshīfù). Yú (余) is a chinese surname and 師傅 (shīfù) means 'master' which as a title is put end of a teacher's name.
- Master Yu and his academy serve as a satirical parody of atypical "strip mall" dojos where parents are able to purchase belts for their children in disregard of the symbolism and substance behind them, as well as a reflection of Sifu Kisu's and Bryan Konietzko's own personal disdain for the use of belt systems.
- Sab Shimono, the voice actor for Master Yu, is also the voice of Monk Gyatso.