Abu-Se-Ken, also known as Abuse and Hataken, is a Japanese vocaloid producer that works most often with Hatsune Miku. He is known for his darker themes, use of traditional Japanese instruments, and unique, high-pitched tuning style. He debuted on niconico and YouTube with various singles, starting with Identification on September 16th, 2018. His first album, titled Dog / Screaming / Livestock, was a compilation of these singles along with new content.