Born on April 4, 1994, in Yamaguchi Prefecture, this artist began posting VOCALOID songs in December 2018. Known for their poignant melodies and thought-provoking lyrics, their popularity soared with hits like "Last Resort," surpassing 14 million views on YouTube in April 2019. Their debut EP "Ghost Tokyo," released in November 2019, sold out quickly. With a reputation for self-covers of VOCALOID tracks, their rendition of "Night-stroking Menou" exceeded 23 million views on YouTube and even reached the top 10 on Apple Music. In addition to their work as a VOCALOID producer and with YOASOBI, they have provided songs for various artists, such as LiSA x Uru's "Reunion," Hey! Say! JUMP's "One Thousand and One Nights," and tracks for the popular mobile game 'Project Sekai: Colorful Stage! feat. Hatsune Miku' unit "Vivid BAD SQUAD." Their compositions for LiSA's "Go," Moriyama Shina's "Deep Sea," and more showcase their versatility. In June 2021, they dominated the "TOP Composers" chart of the Billboard JAPAN mid-year ranking, achieving five titles in downloads, streaming, radio, Twitter, and video views, garnering attention for their future endeavors.