It's official. San is the bad ass who did all that damage to Hwan. San has "always been go...

It's official. San is the bad ass who did all that damage to Hwan. San has "always been good with weapons" and it's important for Hwan to not recognize him. I bet San was really the one to do the damage, Geumsun definitely played a part, and since he didn't get hurt like San, I bet that's why he's remembered and assumed to be the reasin why Hwan almost died.

It's safe to assume the markings on San are the work of Geumsun. It's said that he had to share some of his powers with San. I have two theories about this. A) It's true that San lost his powers and memories, but by now he has regained them, but Geumsun has restricted them with those markings for the sake of defeating Hwan. Or B) San never lost his powers and memory, it's just an excuse, and the markings are restricting them, and once they are undone, San will have both powers and memories back.

Regardless, I think Geumsun is resticting San's powers, and that those markings are why San smells like Geumsun, all for the sake of keeping him hidden