Not sure if this is even a theory or an established fact in the show but I think the two parallel universes were created when the flute was cut in half. Notice the shape of the portal, it's the same as the broken shape of the flute. #TheKingEternalMonarch #TKEM

Another #TheKingEternalMonarch theory: Lee Gon (Lee Min Ho) saved his younger self during the murder of the King. He just happened to have the ID of Tae-Eul. There might be some time travel involved. But look at these shots, this is definitely him, right? Look at the eyes. #TKEM

And I've always wondered where or what happened to the Queen of Corea. Her counterpart in Korea is being held captive by Lee Lim, so I guess she will be an important card in the future. #TheKingEternalMonarch #TKEM theories

This definitely reinforces the theory that adult Lee Gon saved his younger self. The bright and sunny place in Corea is the key to the time travel. #TheKingEternalMonarch #TKEM

Yoyo kid in the bookstore is NOT a duality. He is the same person. He can travel between the parallel universes and time. Kid might be a deity or something of a higher being as we can see he is aware about things. #TheKingEternalMonarch #TKEM

This might be crazy but what if the seeds Tae-Eul planted grow and become a second bamboo forest, like a portal between the worlds? Just another crazy #TheKingEternalMonarch theory this show is just genius. So many possibilities! #TKEM

Ep 10 Takeaway: Lee Lim's obelisks (gate) is not in the Bamboo Forest. That's why even if Lee Gon had guards stationed in the forest, they did not see him pass through #TheKingEternalMonarch #TKEM

Lee Gon tried passing through Lee Lim's obelisk. We see him riding Maximus in the pink place and a red balloon shows up in the Bamboo forest. Seconds later, we see him wearing the same clothes. #TheKingEternalMonarch

Through this, Lee Gon has time jumped! Now, I used the term "time jumped" because he merely went forward in time and skipped days. He went in 10 days before the end of the year. And came back January 23. #TheKingEternalMonarch #TKEM theory

Now, you might think, "but he might have stayed in Korea for a few days?"
Judging on his conversation woth JTE, he left instantly. Plus he's wearing the same clothes #TheKingEternalMonarch #TKEM

Oh and I think he's also learned how to compute/estimate how many days passes by while he's in the pink place. So I hope he can use this to time travel in the future episodes #TheKingEternalMonarch #TKEM

Episode 11: As previously tweeted, Yoyo Kid is not a duality and she is some sort of deity! Think Greek Fates, Chinese Siming and Korean Samsin (Goblin also has her btw)
#TheKingEternalMonarch #TKEM

This is Prime Minister Koo in Korea. She went through the portal with the help of Lee Lim or his henchmen. That's why she went on a sick day and did not reply to any messages. Not sure if they're allies. #TheKingEternalMonarch #TKEM

Prince Buyeong's son (or his doppleganger) is a Lee Lim ally. #TheKingEternalMonarch #TKEM

Please don't persecute me for this, but I've been wondering if the girl Gon rescued is JTE or Luna? The lines are confusing

If she were JTE, by this line it is inferred she knows she is in Corea. Note, JTE never met this kid while she was in Corea

#TheKingEternalMonarch #TKEM

But after she escapes, she says this:

So is she Luna who earlier in the episode was in Korea? Is she surprised to be back in Corea and is now scared of the thought of being hunted by people she owes?
#TheKingEternalMonarch #TKEM

Switching them is now possible because Luna was gearing up earlier to take the place of JTE.

I really do hope my hunch is wrong because if this were true, this ruins the romantic rescue scene

#TheKingEternalMonarch #TKEM