So they finally knew who they really are?! I

This remind me of Basara, how the Female Lead met Male Lead coincidently and start interested on each other without knowing they're supposed to be enemy to one another.
How Female Lead was looking for vengeance without knowing the man she loved is actually the enemy.
Both this story and Basara's Female Lead are a strong fighter.
The difference probably will depend on the ending.... in Basara, they end up together after long separation. But in this story, it is hard to say....