He had been an amateur sumo champion at
Nihon University but worked as a high school
physical education teacher after graduation. He did not join the professional sport until March 1992, when he was nearly 28, an extraordinarily late age. (The
Sumo Association have since changed its rules and all former amateurs must now make their professional debuts before the age of 25). He made his debut in the third highest
makushita division, fighting out of
Tatsunami stable. At just and , he was not much bigger than
Mainoumi, the lightest wrestler at the time. He began wrestling under his own surname of Narimatsu, but upon reaching
sekitori status he adopted the formal
shikona of Tomonohana, meaning "flower of wisdom." Tomonohana had winning records or
kachi-koshi in his first twelve tournaments, including winning an eight-way playoff for the third-division championship. He reached the second highest
jūryō division in November 1992, taking just four tournaments, and the top
makuuchi division in July 1993, following another four winning records. A popular wrestler, he was nicknamed "
Sensei" because of his teaching background. He used a wide variety of
techniques to counteract his light weight, and won the prestigious
Ginō-shō, or technique prize, in two consecutive tournaments in September and November 1993. In January 1994 he reached the
sanyaku ranks at
komusubi, but turned in the first losing record of his career, 4–11, and never made the rank again. He was demoted back to
jūryō in March 1996 and subsequent injuries prevented him from returning to the top division. Nevertheless, he carried on fighting until November 2001 when he announced his retirement at the age of 37. ==Fighting style==