Nakamura was affiliated with the acting group D-Boys produced by Watanabe Entertainment.
However, through his time in Johnny's Jr., Nakamura realized he had more interest in pursuing a career in acting than in music, despite the passion for dance that motivated him to join the agency.
[2] On July 27, 2004, Nakamura performed in the D-Boys Open Audition, and came in as the Grand Prize winner.
He joined the group shortly after,[3] along with runner-up Shunji Igarashi and third-placer Katsuki Nakamura.
In March 2010, Nakamura became part of a new D-Boys sub-unit named D-Date alongside Shunji Igarashi, Kōji Seto, Hirofumi Araki and Arata Horii,[4] but had to leave for health reasons and medical treatment.