He is on the books of Puszcza Niepolomice and wears shirt number 17. His main role on the pitch is Forward. His estimated market valuation currently stands at 200K €.

His latest transfer saw him join Puszcza Niepolomice from Siarka Tarnobrzeg via on 2025-07-01.

During the Poland Liga 1 2025-2026 campaign, kosei iwao made 23 appearances, scoring 4 goals and adding 0 assists. He averaged 0.2 goals per match from 0 shots, with 0 on target.