Natalia

That’s St. Christopher. The patron saint of travelers. That’s a nice thought. Someone carrying us on our journey. Someone watching over us.

This is a very popular fan theory among Korean fans!

In the First Episode, we saw a young king&queen.

The Queen must be Kim Shin’s younger sister (or at least cousin sister) since she was the first one to get shot by an arrow when the King yelled “Kill everyone from Kim Shin’s family.”

And there’s one thing we must point out: THE SYNOPSIS

We now call them the “Grim Reaper” and “Sunny”, but in the early stages, the synopsis called them “Wang Yeo” and “Kim Sun”

And if you’re interested in historical dramas, you’d know that “Wang” is a family name given to the Goryeo Royal Family.

Also if the Queen is Kim Shin’s younger sister, Kim Sun is a possible name for her. (Kim ‘Sun’ -> Sunny)

And you remember when Kim Shin became the goblin and returned to the palace (for revenge)?

This evil subject (also in the first picture) got much older, so we can see that the time has past. So the Young king who looked like a teenager must be in his 20s or 30s. They don’t show us the dead king’s body, and korean fans assume that it is because they’re gonna show Lee Dongwook (Grim Reaper)’s face as the grown up king when the secret of Grim Reaper & Sunny reveals.

So Grim Reaper is the dead king who lost his memory (and probably regretted his choice so much) and Sunny must be the reincarnation of the dead Queen, Kim Shin’s sister. Also the opening clip provides some certainty too.

THEY LITERALLY REWINDED DEAD QUEEN’S TEAR AND THEN INTRODUCE SUNNY