[2] He was a member of Kansai Johnny's Jr..[7] Nagase was a member of the Kansai Johnny's Jr. group Ae Shonen,[8] Nagase formed the unit Naniwa Oji, with Daigo Nishihata and Ryusei Onishi in 2012.
[11] On May 23, 2018, he made his CD debut as King & Prince with the single Cinderella Girl.
[20] On September 15, 2023, he reported on his blog that he graduated from the Department of Sociology, Meiji Gakuin University.
[22] His decision to enroll at Meiji Gakuin University was based on the recommendation of former Timelesz member Kento Nakajima.
[24][25][26] He is a game companion of Kazunari Ninomiya of Arashi and Ryosuke Yamada of Hey!
[28] Nishihata and Masakado also appeared on Nagase's Instagram Live,[29] and in each television series.
[30] Nagase's first collaboration song Shimi (Stain), which he sang with Nishihata and Masakado, was included on King & Prince's sixth album Re:Era.