Secret Royal Inspector & Joy - Season 1 Episode 4 -

Yi Eon and Jo Yi run into a ghost. Jo Yi realizes that the ghost bears a striking resemblance to someone she knows. She starts chasing after it and soon discovers the ghost’s secret. Meanwhile, Yi Eon and Jo Yi hear that Soyang Trading Group is riddled with corruption. They infiltrate the group to save the kids suffering under the tyrannical leader, Cha Mal Jong.