Kim Hyun-jin (Korean: 김현진; born August 24, 1996) is a South Korean actor and model. He is the portrayer of Ion Jace Mendez.
Choi Ye-won (Korean: 최예원; born June 18, 1999), known professionally as Arin, is a South Korean singer and actress. She is a member of South Korean girl group Oh My Girl. She is the portrayer of Keith Chloe Athena Dela Cruz.