I don't know how many years Taehyuk is older than Hyo-un in the past (maybe 25-30) but in the present time, it is Hyo-un who is much older, almost 300 years older lol
Lololol hyo-un could still be older now. He just took the form of the child when he stumbled across one.
True, also god know for how long he was stuck in that river after he got rid of the villagers
But let's face the truth even in his 300s he is a crybaby (▰˘◡˘▰)
I don't know how many years Taehyuk is older than Hyo-un in the past (maybe 25-30) but in the present time, it is Hyo-un who is much older, almost 300 years older lol