Lydia Kim, known professionally as KISAKI, is a Canadian producer, vocalist, musician, DJ and Twitch VTuber, based in Toronto. 

KISAKI most recently joined Emtee Music Group as an executive in artist development and education for artists and labels both independent and major. 

An alumni of Etobicoke School of the Arts' musical theatre program, KISAKI competed in collegiate a cappella while receiving classic voice training. Known for her dynamic and powerful vocal performances at DJ raves, she frequently collaborates with other international producers as a vocalist and lyricist in different genres including rock, pop, R&B, and jazz. Her EDM discography also include melodic dubstep, future bass, future house, psy trance, synthwave, and eurobeat.

She has released multiple tracks with high-profile underground music groups in doujin culture including EastNewSound, Nuzix, and Galaxian Recordings. Upon graduating from the University of Toronto's Masters of Music Technology and Digital Media program, she began to experiment with East Asian traditional sounds into her music.

KISAKI lists MIYAVI, Lights, BoA, Lindsey Stirling, Ellie Goulding, GRANRODEO, and Sawano Hiroyuki as among her musical influences, as well as various productions with dystopian futuristic themes such as Akira, Ghost in the Shell, Attack on Titan, and Final Fantasy. On July 16, 2021, she released her first EP, titled Heart Battery, where she wrote, produced, engineered, and recorded the majority of the EP by herself. In the following year, she released the companion remix EP, Battery (The Remixes), featuring Tephra, Sixtroke, KYN, and Riots Revenge.