[1] Born in Brazil to Japanese parents, Toshiki travelled to Japan in 1981 to pursue a career in music, being chosen by producer Koichi Fujita to be the new lead vocalist of Omega Tribe after the disbandment of the previous incarnation of the band.

He returned to music in 2017 with the Japanese-American jazz band B-EDGE, and tours with them in Japan while growing garlic in Brazil.

[3] Toshiki was born on April 7, 1964 in Londrina, Brazil to Japanese parents, both of whom owned a restaurant in Curitiba and lived a Nikkei community in Maringá.

He developed a taste for music at an early age and would lock himself in his room to practice singing for hours after school, memorizing the lyrics phonetically.

Fujita had wanted to continue Omega Tribe, which were in the middle of their final tour, and contacted Toshiki for an audition to become their new lead vocalist.

The song would become 1986 Omega Tribe's debut single, "Kimi ha 1000%", which Toshiki sang without understanding most of the lyrics.

After four albums, the group announced to the TV program Music Station that they would disband following a tour, officially breaking up on March 16, 1991.

[5] He became a restaurateur, running his parents' restaurant, before deciding to pursue a career in biotechnology and started working at a seed company.

[9][10] The next year, he toured again with the Turne do Japao 2018 and released his the album Nova Nostalgia, which featured self-covers of past Omega Tribe songs.

[11] The band released the album Nova Nostalga in 2018, covering many of Toshiki's songs during the Omega Tribe era.