After leaving Johnny & Associates, Tanaka formed his own indie rock band called INKT.
Tanaka graduated from Horikoshi High School, and eventually went to study at Josai International University, but he quit halfway.
Tanaka joined Johnny & Associates in 1998 when he was only 13 years old, he once stated the reason why he applied was “My mother sent the application form behind my back.
[5] After the band's disbandment, Tanaka still continues to release music and perform in live shows as a solo artist.
[8] On January 5, 2020, Tanaka started his own official YouTube channel where he uploads original content often featuring him with his younger brother Hyouga.
[12] As an actor, Tanaka has appeared in a string of Japanese TV series and movies and has won 2 awards for his acting work in My Boss My Hero.
[citation needed] On May 24, 2017, Tanaka was arrested for marijuana possession during a traffic stop, despite claiming the cannabis in his car were not his he was tested positive to the drug and was detained for 2 weeks while investigations were ongoing.
[17] On September 12, 2023, Tanaka was sentenced to 12 months in prison for possession and use of methamphetamines by a Chiba court.