The glaring ads didn't bother me. The cringey prince-charming-saving-Cinderella-in-a white horse-holding-a-sword-while-the-enemies-are holding-guns made me cringe too, but did not daunt me. I gave this series a chance after another, but the unrealistically happy ending was the final straw. I think a sad and tragic ending would have made more sense.

After all the mess that the broken flute had caused, I thought LG would come to realize that the previous kings had good reasons for not playing God. Gon could have tried to do what’s right and seal the road to parallel worlds forever by leaving the flute in the baloon dimension, making sure no one can abuse its power down the line again. He could have decided to do that after finding Tae-Eul and fulfilling his last promise. Sure, he would be left heartbroken, but he would be making a decision bigger than himself or his royal family woes, and that would have been an amazing character redemption, no? Because in the end, if he doesn't choose what's best for eternity's sake, then his focus on killing his uncle and getting the flute would be nothing but a personal vendetta which would have made him somewhat of a narrow character with nada development.

Unfortunately, that's exactly what he has become. In the end, he chose to use the flute for his own selfish reasons, even if that reason is love, ignoring the fact that him and Tae-Eul couldn’t live like teens on a road trip forever, what with him being a king with the responsibility of sustaining the royal lineage by finding a queen in his world who could provide him with an heir.

Holding on to that note, here’s another flaw: if the children have the same parents in RoK and KoC, it goes to say that the worlds have ‘mirror’ couples too. Therefore, the hint that Luna and Hyeon-min could end up together while LG and Tae-eul are gallivanting through dimensions is breaking the series’ own set of rules.

In an alternate ending, I’m imagining Tae-Eul wandering the streets where she met LG for the first time, still teary-eyed and wistful, when a grown Ji-hun walks by. Only this time, she dropped her ID that she was holding as she was intently staring at his face, and Ji-Hun stopped to pick it up, looking at it first and then her face, before saying her name out loud and returning it to her with a smile…. While in Corea, Gon’s life is again in trouble due to some terrorists or another coup. Yeong was busy protecting him from the front, when a bullet was shot from behind. Luckily, a police officer shielded him from this bullet, who turns out to be Luna. If you think about it, Gon's obsession with Tae-Eul started with the thought that she had something to do with saving his child self. In a fixed timeline, Luna was actually the one meant to save him, and Ji-hun was the one meant to pick up Tae-Eul's ID.

All along, Tae-Eul is apparently fated to meet Ji-hun in her world, and Lee Gon to Luna. LG and Tae-Eul’s meeting was a result of the the strings getting tangled and mixed up, so when the flute got fixed, so does their fate and timeline. Finally tying the loose ends. Not a happy ending, but way more realistic and would make the title "Eternal monarch" more befitting.

Needless to say, I am sorely disappointed in the loose ends and lack of character development that I have created in my mind a more sensible ending while watching. They set a lot of rules, yet in the end, they fail to abide by the rules. And that, for me, is the most annoying of all.