This South Korean television series that premiere on July 17, 2017 stars a singer and actress who is a member of what girl group?
School 2017: School 2017 (Hangul: 학교 2017 ; RR: "Hakgyo 2017 " ) is a South Korean television series starring Kim Se-jeong, Kim Jung-hyun, , Han Sun-hwa, and Han Joo-wan. School 2017:  It premiered on KBS2 on July 17, 2017 and airs every Monday and Tuesday at 22:00 KST. Kim Se-jeong: Kim Se-jeong (born August 28, 1996) is a South Korean singer and actress signed under Jellyfish Entertainment.
i don't know