1x12 - Secret Royal Inspector & Joy

Yi Eon finds out Tae Seo was the fake physician who poisoned the Crown Prince to death. He wants to reveal that Park Seung was behind it but, Director Sim stops him as there is no point in arresting him when the King is on his side. Meanwhile, Jo Yi hesitates to hand over the gunpowder ledger to Yi Eon as she knows that her mother is involved.