The Queen and I on CBS

Season 1, Episode 15
Receiving the charm was the cause, realizing too late is the effect... Hae Jin finds Bong Do a place to live five minutes away from hers, which makes it too easy for her to happily visit him on a nightly basis.

Season 1, Episode 13
Yun Wol finds out Bong Do is trying to go to the other world. She warns him about what the chief monk told her and tries to stop him. Hae Jin gets Bong Do a cell phone and suddenly receives an unexpected call from his number.

Season 1, Episode 11
Bong Do finds the charm and returns to the present only to find that no one remembers him. Meanwhile, Hae Jin keeps getting calls from an unknown number.

Season 1, Episode 9
Who is Queen Inhyun? Bong Do has lost his memory along with his charm. He has no idea that he's responsible for Queen Inhyun, who has been restored to power. Instead, he's happy to learn about this news from his servant.