During his boyhood in Ukraine, Aonishiki first encountered sumo. That he began practicing sumo alongside wrestling at the age of seven was purely by chance.
“My mom always picked me up from the gym, but one day she happened to be late. So I thought, ‘Maybe I’ll try joining the sumo practice (held after wrestling)?’ and gave it a shot without much thought. And then I got hooked (laughs). I realized there was a kind of fun in it that was different from wrestling, something like that.”
At age 15, he placed third at the World Junior Championships held in Osaka. It was there that he met Arata Yamanaka, who was then captain of Kansai University’s sumo club.
“I was the one who spoke to him first. I thought he looked like he’d become strong in the future… Then, some time later, Ukraine was invaded by Russia, and I received a message from Danya (Aonishiki’s nickname), who wanted to continue sumo,” Yamanaka recalls.
At 18, Danya boarded at Yamanaka’s home, attended a Japanese language school during the day, and continued training in the evenings at Kansai University and the sumo club of Hotoku Gakuen High School.
“Danya was strong right from the start. None of the sumo club members at our university could beat him,” Yamanaka says.
Supported by his teammates, his Japanese steadily improved. He tried out newly learned Japanese words two or three times a day, and whenever he didn’t understand something, he asked those around him for explanations. Through these daily efforts, he eventually mastered everyday conversation with little difficulty.
Danya’s dream was to “become a professional sumo wrestler.” However, under sumo rules, each stable is generally allowed only one foreign-born wrestler. This meant that he could not join a stable that already had a foreign wrestler, leaving him with the reality that his only path forward was to find one that did not.
Taking these circumstances into account, Koji Fukuda, then head coach at Hotoku Gakuen High School—where Danya had been training—approached the newly established Ajigawa Stable about taking him in. At first, Ajigawa-oyakata planned to refuse any foreign recruits, but Danya’s earnest gaze and sincere attitude reportedly led him to change his mind.
Thus, Danya inherited the character “A” from his master’s ring name, Aminishiki, and incorporated “blue,” the color of the Ukrainian flag, to become “Aonishiki.” He made his professional debut at the Autumn Tournament of 2023 at age 19.
After joining the stable, his training initially focused on basics such as shiko stomps, push-ups, and suriashi footwork, all aimed at building a body suitable for a sumo wrestler. Ajigawa-oyakata explains:
“When Aonishiki does suriashi, he leans so far forward that his upper body is almost parallel to the ground. That leads directly to his strength—his sumo style built from a strong forward-leaning posture.”