*Club domestic league appearances and goals, correct as of 15:48, 25 November 2023 (UTC) ‡ National team caps and goals, correct as of 15:48, 25 November 2023 (UTC)
Ayukawa was born in Kasugai. He played youth football for FC Fervor Aichi and Sanfreece Hiroshima.
Career
Ayukawa made his debut for Sanfreece against Vegalta Sendai on 27 February 2021.[2] He scored his first goal for the club on 21 March 2021, scoring in the 90th+3rd minute.[3]
In the middle of the 2023 season, Ayukawa moved on loan to J2 League club Oita Trinita.[4] He made his debut for Oita against Shimizu S-Pulse on 9 July 2023.[5] He scored his first goal for the club against Fujieda MYFC, scoring in the 33rd minute on 12 August 2023.[6]
The loan was extended in December 2023 and would remain at Oita for the 2024 season.[7]
International career
Shun was called up for the Japan U17s and U18s. He has caps for the U19s.
Shun made his debut for the Japan U23s on 25 September 2023.[8] He scored his first goals on 28 September 2023, scoring a brace against Myanmar U23s.[9]