Nawata began his career as a football player at Konokawauchi SC when he was an elementary school student.
[3] And then, he skipped a grade to join the high school team, and he is still a key player there.
At 2023 AFC U-17 Asian Cup, he scored the most of all the players and led his national team to victory.
[8] On 11 October, he was named by English newspaper The Guardian as one of the best players born in 2006 worldwide.
In the first game at the knockout round, he scored the equalizer against Spain, but Japan conceded a goal later and ended up in defeat.