When he was in elementary school, he learned about rock from Asian Kung-Fu Generation, and then fell in love with Vola and the Oriental Machine and 8otto.
[7] After graduating from junior high school, he bought a bass and formed a cover band for Asian Kung-Fu Generation with his friends.
[13] In 2016, he began participating in the live performances of Vocaloid producer n-buna and Takeaki Wada as a support bassist, and as a composer he belongs to Smile Company and other artists.
[14][15][1] After that, as a support bassist in the band "Yorushika" formed by n-buna in 2017, he had fully participated in recording and live performances from the beginning to the present.
[16] On 30 March 2017, in commemoration of his Vocaloid song "The Trash Room Sinks into a Rust Color" becoming his first music video to achieve 100,000 views on Nico Nico Douga and being inducted into the site's Hall of Fame, he posted a self-cover under the name Tatsuya Kitani.
At the same time Asahi Super Dry x The First Take collaboration project tie-up song "chiharu feat.
[34][35] On July 7, 2023, he released the lead track "Ao No Sumika" of his EP "Where Our Blue Is", which served as the opening theme song for the first 5 episodes in the second season of the anime Jujutsu Kaisen.