[6] In June 2021, Itō joined Bundesliga club VfB Stuttgart on loan, and was assigned to play for the second team in the Regionalliga Südwest.

[7] However, he was instantly promoted to the first team by coach Pellegrino Matarazzo, and started his first match in a 6–0 away win against BFC Dynamo in the DFB-Pokal.

[11] On 13 June 2024, Itō signed for fellow Bundesliga club Bayern Munich until 2028,[12] after they had triggered his release clause of an estimated €30 million.

[14] He made his debut for the club on 12 February 2025, during a 2–1 away victory over Celtic in the Champions League knockout phase play-offs.

[19] Itō made his debut for the senior Japan national team on 2 June 2022, during a 4–1 friendly win over Paraguay.