Shin Ryujin is a successful solo artist, best known in her home country, South Korea.
Hwang Yeji is her new manager, who happens to also be Ryujin's ex girlfriend.
Yeji did not talk to her parents that day. She did so days later, when the episode with her apologizing to Ryujin had aired. After her father had called ten times. She had excused herself to the bedroom and decided texting would be easier than calling.
(Author's note: probably the only Yeji pov you'll get at least until near the end maybe)