On one side are the four major families that dominate the world, and on the other side is the feared killer organization——Shunying. When the contradiction between good and evil has become a kind of involuntary, when destiny points to an unavoidable war, all the love between children becomes pale, and the world is only filled with blood and coquettishness, which seems to indicate all kinds of ominous things. At the moment when I was struggling to reveal my destiny, that year in Chang'an suddenly appeared in my mind, with falling flowers all over the sky, and I still remember staining my fingertips. At first he was young and frivolous, but now he is at a loss. If we had anticipated the ending at that time, looking back at that time when we first met, would we still choose to get to know each other without hesitation?