Everyone only thinks that she is the coolest, but no demon has any intentions. If you love, why make an empty promise? When people in the world are congratulating their childhood sweethearts for their reunion, who cares that there are people deep in the bamboo forest drinking and weeping in front of the moon. It's hard to conquer a city, but it's better to use a knife to cook wine and fight with a sword to the end of the world. When she grew up alone in the future she had promised, she reunited with her old friends. However, swords and loneliness have become the norm, and the pain that once was has become an itch. Will everything happen again? Someone asked. Clink glasses.