Tokitsukaze stable
Toyonoshima is the oldest son of a tofu maker. In his early years, he was an avid soccer player. However, his destiny changed after winning an area boys' sumo tournament championship. In junior high and high school, he was rivals with another future sumo wrestler who would go on to take the fighting name Kotoshōgiku. Kotoshōgiku later became a rival of his in professional sumo as well. After graduating from high school, Toyonoshima joined Tokitsukaze stable through a connection a friend of his father's had with the stable. He was below the minimum height requirement of 173 cm but was allowed to make his debut after passing a secondary physical exam.