A former amateur sumo competitor at Nihon University, he made his professional debut in 2012 and was promoted to the top makuuchi division in July 2015.

Upon graduation, he was scouted by stables, but chose to enter Nihon University, where he joined its well-known sumo program.

This marked the ninth time there were brothers ranked in the top division simultaneously,[3] and the first since Chiyomaru and Chiyoōtori in March 2014.

He produced his first winning record in the top division at the seventh attempt, a 10–5, which saw him promoted to his highest rank to date of maegashira 6 for the May 2021 tournament.

On 22 December 2021, Hidenoumi and his stablemate Shiden [ja] were withdrawn by their stablemaster Kise Oyakata (former maegashira Higonoumi) from the January 2022 tournament for suspected involvement in illegal gambling.

During the investigation suspicions were raised about the involvement of both Hidenoumi and Shiden, as well as other sumo wrestlers that may have possibly visited the establishment.

[7] On 15 January 2022, Japanese media outlets reported that the Sumo Association's compliance committee, after holding hearings, concluded that Hidenoumi and Shiden participated in illegal gambling.

The committee found that Hidenoumi and Shiden visited the establishment on two occasions in July and August of 2021 during the time that the Sumo Association had relaxed COVID-related restrictions on going out.

[7] On 27 January, the Sumo Association accepted the committee's recommendation, suspending Hidenoumi for one tournament and also cutting his salary by 20% for two months.

Shiden was not issued any formal suspension, but his kyūjō from the January basho will likely result in his demotion from sekitori status and a loss of salary.

[13] Hidenoumi's younger brother Masaya is also a sumo wrestler who wrestles for Oitekaze stable under the shikona of Tobizaru.

Tobizaru was promoted to jūryō in July 2017 and makuuchi in September 2020; they became the 18th pair of sekitori brothers in sumo history.

[14] Despite the fact that they are in different stables, Hidenoumi will not face him in competition as Japan Sumo Association rules prevent close relatives from being matched against each other outside of playoff bouts.