In 1999, he formed the band "ET-King" with Itokin and Klutch.
Prior to their formation, he was a drummer in rock bands.
On 9 March 2012, he announced his engagement with Takako Uehara a member of the music group "Speed" and an actress.
[2] In August 2017, Japanese publications Josei Seven and NEWS Post Seven published portions of Tenn's suicide note, shared by his family, which included references to his wife having an affair with Tsuyoshi Abe.
Portions of photographed chat transcripts between his wife and Abe, discovered on Tenn's personal phone, were also published.