When he was in elementary school, he belonged to the dodgeball club. He ​belonged ​to the track and field club at Oasa Higashimachi Junior High School, engaged in hurdle running in the first grade, 100m, push out and high jump in the second grade. He grew from 168cm in first year to 183 cm in second year and 188 cm in third year. And he was unable to practice as much as he could because of Osgood’s, which induces knee pain. However, his height later became a very strong weapon in competing within the world. After entering high school, Osgood’s disease was completely cured, and he started the octathlon with the recommendation of the track and field manager. His sense of octathlon is by far the beat, and he finished second in the final inter high school competition.