A man gets involved with a child in a battle and he helps her
when i was watching blade of the immortal i was thinking of the man from nowhere

-girls skilled in medicine
-their mothers died when they were young
-political conflict
-love

Well, because of the subject of trot music in both of dramas. Joy is known that she sings trot music.

Both have time travel and romance. Both are great dramas and On Dal reminds me of Wang So, a little bit.

Both dramas has:
-smart characters as the main ones.
-killers.
-detectives who are involved in the case.
-characters with a deep story life.