Kagayama made his league debut against AC Kajaani on 27 April 2019.[1] He scored his first league goal against AC Oulu on 29 May 2019, scoring in the 37th minute.[2]
On 11 July 2019, Kagayama won June Player of the Month.[3]
On 8 August 2019, Kagayama was announced at KPV.[4] He made his league debut against HIFK Fotboll on 9 August 2019.[5]
Kagayama was announced at Inter Turku.[6] He made his league debut against RoPS on 2 July 2020.[7] Kagayama scored his first league goal against Ilves on 11 July 2020, scoring in the 41st minute.[8]
On 29 January 2022, Kagayama signed with Sabah in Malaysia.[9] He played 30 matches in all competition for Sabah and provide 2 assist and 3 goals in the Malaysia Super League. He scored 2 goals in the Malaysia Cup to take Sabah to the semi-final. He left at the end of the season to return to Finland.[10]
Kagayama made his league debut against Torpedo Kutaisi on 19 March 2023.[11] He scored his first league goal against FC Samtredia on 22 April 2023, scoring in the 88th minute.[12]
On August 14 2024, Kagayama was announced at GIF Sundsvall.[13] He made his league debut against Varbergs BoIS on 16 August 2024.[14]
On 19 April 2025, the Swedish club confirmed that they had exercised a clause in Kagayama’s contract allowing them to terminate the agreement.[15] The decision was part of a cost-cutting initiative aimed at reducing expenses.[15] According to media reports, it was also influenced by interest from the North Macedonian club FK Voska Sport. However, just a few days later, on 9 January 2025, it was announced that Kagayama and GIF Sundsvall had signed a new contract, with Kagayama agreeing to a reduced salary.[16][17]