The confrontation and attraction of dual identities, the secret surrounding the "Deep Blue Heart", and the game of huge forces behind the two.
How do the dual identities of light and darkness coexist? How do you define your true self?
How does strong-power confrontation turn into life-and-death dependence? Can love be the power of redemption and change?
How to break free from the shackles of family, fate, and identity and gain true freedom?
The world is not black and white. How to protect the light in the shadows?
