In 2007, Tanaka acted in Tanaka Express No. 3 as the younger version of the main character Ichiro Tanaka (played by Koki Tanaka).[5]
Tanaka joined Johnny & Associates on April 20, 2008, after his mother submitted an application and after passing an audition and dancing as a backup dancer at a Hey! Say! JUMP concert, he was placed in the Junior's branch of the company that manages talent that has not debuted.[6] In 2012, he costarred in Shiritsu Bakaleya Koukou with future SixTones groupmates Yugo Kochi, Jesse, Shintaro Morimoto, Hokuto Matsumura, and Taiga Kyomoto.[7] Along with SixTones, Tanaka has starred in other musical stage shows such as Shounentachi between 2015 and 2017 with fellow Johnny's Jr. group Snow Man.[8] In 2016, Tanaka starred in his first role as Hideo Matsunaga in Vanilla Boy: Tomorrow Is Another Day with Matsumura and Jesse.[9]
Tanaka debuted with SixTones in 2020.[10] In 2023, Tanaka played Naoya Katayama in the television drama Tanshin Hanabi airing on TV Asahi.[11] In 2024, Tanaka played Ui Saito in the television and movie series Acma: Game, based on a manga series of the same name. In the same year, Tanaka co-hosted his first broadcast television series with labelmate Shori Sato in Abekobe Danshi no Matsu Heya de where Sato and Tanaka, with the assistance of two other host, showcase how their personalities are "complete opposites" and also attempt to work together to find ways to interview their guests in a comfortable setting.[12]