is a Japanese footballer who plays for Avispa Fukuoka.
While attending Fukuoka University, Nagaishi was signed as a special designated player by Sagan Tosu. He did not make any league appearances during his time, but was named on the bench once against Shonan Bellmare.
Cerezo Osaka signed him as a special designated player in May 2017. He would also be joining the team from the 2018 season. Nagaishi made the bench 20 times for Cerezo Osaka, but didn't make any appearances - his earliest benched league game is against Consadole Sapporo on 9 September 2020.
Nagaishi made his league debut against Kataller Toyama on 21 March 2018.
On 7 January 2019, Nagaishi was announced at Renofa Yamaguchi. He did not make any league appearances during his time, but was named on the bench once against Fagiano Okayama.
On 11 January 2021, Nagaishi was announced at Avispa Fukuoka. He made the bench 18 times for Avispa Fukuoka, but didn't make any appearances - his earliest benched league game is against Yokohama F. Marinos.
On 17 December 2021, Nagaishi was announced at Avispa Fukuoka on a permanent transfer. He made his league debut against FC Tokyo on 2 July 2022. In 2023, Naigaishi was mainly used in the Levain Cup.
.
Avispa Fukuoka