Ryunosuke Sato was born in Japan and is one of the J1 League's most exciting young attacking midfielders. He developed through FC Tokyo's youth ranks before being loaned to Fagiano Okayama in January 2025 to gain regular senior minutes. The 2025 J1 season has produced 28 J1 League matches with a goal and an assist for Fagiano. In January 2026 he returned to FC Tokyo.
For Japan, Sato has been a member of Japan U-20 squads, including the FIFA U-20 World Cup. He earned his Japan A-team debut in 2025 with 1 senior friendly appearance.
A two-footed attacking midfielder with vision, ball-control and the goal-scoring instinct of a creator who arrives in the box, Sato is one of Japan's most exciting young creative midfielders. He is a candidate for the wider 2026 FIFA World Cup squad as a young midfielder development option.