Thousands of years ago, in a holy war with the demons, the demon king was sealed. One of the five sacred beasts who participated in the war disappeared and three fell asleep. Only she was left. The main warrior among humans also basically died, and their souls were scattered in other time and space, including her lover. For thousands of years, she has been pursuing his reincarnation from life to life, and has witnessed his death from life to life. However, she can let go of other people and live her own life, but she cannot let go of him. Thousands of years later, the seal was loosened, and she created a game with him in this life, in order to see them again a thousand years ago, and to seal the demons again...