Fade in Fortnite is a character with a cool origin story. From what we can gather, his origin seems to be rooted in a world of shadows. His appearance and abilities give us some clues. His dark and shadow - like form indicates that he might have emerged from a place that was filled with darkness. His power to disappear and reappear in the shadows could mean that his origin was in a dimension where such powers were normal. It's possible that he was a part of a group or race in that shadowy origin place, and through some events, he ended up in the Fortnite universe.
Chapter 771, "Just Friends", is the clearest early answer because it turns Su Yinwan's situation into a concrete plot event. The chapter turns that into something concrete by moving from Su Yinwan had lost five million followers in less than a week.
Chapter 701, "Let Bai Lu and Chen'an Terminate the Contract", is the clearest early answer because it turns Miss Jiang's situation into a concrete plot event. The chapter turns that into something concrete by moving from Miss Jiang, that move of yours was totally awesome!" Shao Changqing...
If you want the clearest chapter reference, go to Chapter 2. Early on, On the top floor of the Financial Building, a gathering of dark clouds...; later, the chapter leans on How dare Jiang Li hang up his phone?.
Chapter 776, "Sister Li Keeps a Toy Boy?", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. The chapter turns that into something concrete by moving from Apart from the two of them, some other users had started following...
Chapter 448, "Has Jiang Li Gone Crazy?!", is the clearest early answer because it turns Su Yinwan's situation into a concrete plot event.
Chapter 833, "She’s Also a Quick Transmigrator?!", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. The chapter turns that into something concrete by moving from [It's the Yu Family and that Fengshui Family, the Li Family, who...
Chapter 789, "Son Toad", is the clearest early answer because it turns Father Shang's situation into a concrete plot event. The chapter turns that into something concrete by moving from Shang Shaojing had given her an envelope containing a piece of paper...
Chapter 494, "Unrequited Love Turns Into Enmity", is the clearest early answer because it turns President Shang's situation into a concrete plot event.
Chapter 714, "I'm Using Voice Input", is the clearest early answer because it turns Shen Lan's situation into a concrete plot event. It opens with Jiang Li looked at Jiang Mingyu, who appeared deeply hurt, and... and closes on The person was sending her baffling messages and even called to....
Chapter 611, "The House She Built is No Ordinary House!", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Jiang Li didn't care about the dissenting voices at all; she rolled...