Kairiki Bear is a prominent Japanese Vocaloid producer known for emotionally intense, high-tempo compositions. Starting in 2011, he released his first
Vocaloid song '''Wakare no Oto','' and has since become known for his fast-paced, emotionally charged compositions using Vocaloid voicebanks such as
Hatsune Miku,
V Flower, and
Kagamine Rin. His most notable song, Venom, released on August 2, 2018, and totalled 65+ million views on YouTube, due to attention received from
TikTok trends. On January 15, 2020, he released the remix album "Venomer" which peaked at number 12 on the
Oricon Weekly Album Chart . In June 2022, Kairiki Bear launched a new music unit called Retbear, which features anonymous guest vocalists on each track. The debut song,
Atamannaka DEAD END, was used as the opening theme for the anime
Black Summoner. Following the success of Venom, he continued to release songs with similar musical and thematic styles, often exploring intense emotions and abstract concepts including Darling Dance, Ángel, Bug, Ruma, and Failure Girl , many of which have been featured in
Hatsune Miku: Colorful Stage! He held his first solo live concert, titled Yamiaka Steroid, on April 29, 2024, at Spotify O-EAST in Tokyo. The concert featured visual effects and 3D production, combining traditional Vocaloid music with live elements. Both the afternoon and evening performances were sold out. A Blu-ray edition of the performance is released on June 18, 2025, and includes 27 songs along with limited content from the daytime performance. == Discography ==