"If I had known that it would be such a troubling thing, why would I not have known each other in the first place?"
In an accident, she travels through thousands of years of sadistic love. She travels through time and space, trying to change the people in the game, only to find that she has already become the person in the game. One is gentle and beautiful, and the other is crazy and evil. Who is her sadomasochism...
Concept: Love that travels through thousands of years