They met under a mysterious guidance. They have different personalities and opinions. He is lonely, she is mysterious, and she has different opinions on the ghost clan. He snubs everything, and she only believes in herself.
What kind of past does he have with her, whose brother is his heart knot, and whether he and she can go back to the past.
The experiment 500 years ago changed so many people. Cruelty and bloodiness are their nature. Whose words should I believe in kindness and purity?
When the truth gradually comes to light, when the mysteries are revealed layer by layer, where should he and she go?
Light or darkness, which one is their final destination.