Lead vocalist of the Yue Hua Entertainment girls group Everglow, known for their 2019 single "Bon Bon Chocolat".
She was a trainee for 2 years and 10 months, and appeared on the girls group survival show Produce 101 in 2015. She was eliminated in episode 8, but signed with Yue Hua Entertainment after the show ended.
In 2018 she was a trainee on Produce 48, and placed 27th.
She was born Kim Sihyeon in South Korea.
She is close friends with Yang Ye-na.