Han Seokwoo (), better known by his stage name Guinneissik () is a South Korean Electronic musician. He has released two albums: Listening and in Imperfect Peace (ë£ëÂÂìÂÂì 과 ÃÂÂê°ÂÃÂÂ짠못ÃÂÂ) (2020) and Postwar (2021).
Guinneissik started music by learning music from Kirara. He majored in classical music, and his stage name Guinneissik is said to have originated from the Korean word "Ginaesik" (, meaning in-flight meals). released an EP chba in 2019. He released his first studio album Listening and in Imperfect Peace (ë£ëÂÂìÂÂì 과 ÃÂÂê°ÂÃÂÂ짠못ÃÂÂ) in 2020.
In 2021, he released his second studio album Postwar. Indiepost reviewed the album for cleverly borrowing his future bass style and the avant-garde elements of techno, while boldly transforming and developing it into his own way and narrative. In March 2023, he released the single Farewell Two Shell.
In 2026, he released his third studio album, GIRL I LOVE YOU.