Tomozuna stable
In 2004, Erdenbaatar first came to Japan. He came as an exchange student through the Mongolian Judo Federation and became a student at Motosu City First High School in Gifu Prefecture. In his second year of high school he took first place in the prefectural judo tournament and went on to take third place in the Tōkai regional tournament. He had no experience in sumo beforehand, but having aspired to fellow Mongolian Kyokutenhō's success he decided to join Ōshima stable, the same stable as his idol. He was able to circumnavigate sumo's one-foreigner-per-stable rule because Kyokutenhō had become a naturalized Japanese citizen, although this loophole has since been closed. In April 2012 the stable closed with his stablemaster, former "ōzeki" Asahikuni, close to the mandatory retirement age, and he moved to Tomozuna stable.