Bulgasal: Immortal Souls (Korean: 불가살) is a South Korean television series starring Lee Jin-wook, Kwon Nara, Lee Joon, Gong Seung-yeon, Jung Jin-young, Park Myung-shin, and Kim Woo-seok. It is led by director Jang Young-woo, and the screenplay is written by husband-and-wife team Kwon So-ra and Seo Jae-won. It aired on tvN from December 18, 2021 to February 6, 2022. It is also available for streaming on Netflix.

Kwon Ah-yoon, known professionally as Kwon Nara (Korean: 권나라) or Nara, is a South Korean actress, Before she transitioned to acting career she is best known as one of the original members of the South Korean girl group Hello Venus.