Choi Sin Young is Mi Ran's substitute. She work as an assistant at Jinyeong District Prosecutor Office's branch.
Appearances
Diary of a Prosecutor
Guest cast, played by Lee Shin Young
- Episode 1x12: Episode 12 (Jan 28, 2020)
- Episode 1x13: Episode 13 (Feb 3, 2020)
- Episode 1x14: Episode 14 (Feb 4, 2020)
- Episode 1x15: Episode 15 (Feb 10, 2020)
- Episode 1x16: Episode 16 (Feb 11, 2020)