in maezumo (preliminary sumo tryouts) in September 2014 while still a high school student, a very rare occurrence. His coach, the former yokozuna Takanohana, made an arrangement with Sato's high school that he would continue to attend school when not participating in official tournaments. Later news reports however stated that he had dropped out of high school. Satō officially entered the sumo ring as a professional rikishi in November 2014, and in his debut won the lowest division, or jonokuchi, championship with a perfect 7–0 record. He added on another championship, again with a perfect 7–0 record in his next tournament in the next highest division jonidan. In the following March tournament in Osaka, competing in the sandanme division, he finally lost his first bout on the third day, ending his successive win record at 15 bouts. In the following May 2015 tournament, in the makushita division, he had a perfect 6–0 record up until his last bout, but he lost this one to the future Takaryū, who took the championship. This happened again two tournaments later, where he chalked up another six wins in his first six bouts, only to lose to veteran Azumaryū. This was still a good enough record to compete in an eight-man playoff. He defeated two opponents to make it to the final round, but then lost the last round for the championship to future sekitori Chiyoshōma. In the following November 2015 tournament after winning three bouts in a row, he lost his next four and got his first make-koshi or losing tournament. He would bounce back two tournaments later, in March of the following year, winning all of his bouts and defeating former sekitori in his final bout to clinch his first makushita championship. This was a decisive championship that would, in the next tournament, propel him into the salaried ranks of jūryō. In his first jūryō tournament he became only the sixth wrestler in history, and the first ever in his teens to win eight consecutive bouts (a kachi-koshi) in his debut. He however went on to lose four bouts and ended with an 11–4 record for that May 2016 tournament. He spent the next few tournaments rising steadily up the ranks of jūryō recording only one make-koshi, his second up to that point. This culminated in his fourth tournament in jūryō where he chalked up a 12–3 record in the ultra-competitive upper