Hwang Injeong debuted as a solo singer-songwriter under HJ Company/Groove-Rilla Entertainment in 2016 with the single Flame. She works within the genres ballad, dance and pop. Though for her comeback, which may have already taken place but I can't find it, she is going for a trot song. The song is probably going to be titled 찌릿찌릿짜릿짜릿.

In 2017, she recorded three OSTs for the drama First love Again: Malediction, Danger and Quiet Time. Since I coudn't find any audio on Youtube, I'll link the MNET page where the first minute can be heard.
http://www.mnet.com/artist/460891

Instagram: @injeong211
Twitter: @Hwang_Injung