She could be a character with a mysterious past. Maybe she was an orphan who was found by one of the 7 swordsmen and trained to be part of their ranks. Her skills and personality would be shaped by her experiences within the group and her own personal goals, such as seeking revenge or protecting a certain village.
Kasumi is likely a character created specifically for this fanfiction. She's probably a ninja with a strong connection to the 7 swordsmen. Maybe she's a new recruit or someone with a special ability that makes her relevant to the group.
In this fanfiction, Kasumi might be a key figure in a new era for the 7 swordsmen. She could be the one to bring about changes in their traditional ways, either by introducing new techniques or by changing their view on certain matters. Her presence might stir things up within the group, leading to both conflict and growth.
Chapter 545, "Kiss Me", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event. The chapter turns that into something concrete by moving from Truth or dare, I still choose dare!" He just didn't believe it, Jiang...
Chapter 486, "So It's All Set Up, Right? Then She Will Set Up Too!", is the clearest early answer because it turns Shang Shaojing's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Hearing Jiang Li's words, the audience in the live stream was also...
Chapter 461, "Team Q Established!", is the clearest early answer because it turns Established's situation into a concrete plot event. The chapter gives readers a real answer by opening on Bai Lu cried while recounting her ordeal to Jiang Li.
Chapter 309, "Then Come Die with Me!", is the clearest early answer because it turns Chixia Village's situation into a concrete plot event. A useful checkpoint is the way the scene starts with In the dim and damp underground room, only a single incandescent bulb...
Chapter 675, "The Hope of the Jiang Family", is the clearest early answer because it turns Jiang Cheng's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Mother and daughter clung tightly to each other as they chatted and...
Chapter 543, "Please Name Ten Things You Dislike About Su Yinwan", 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 What did Jiang Li just say?
Chapter 667, "Hired a Private Detective?!", is the clearest early answer because it turns Liu Qian's situation into a concrete plot event. The chapter gives readers a real answer by opening on Behind his dark sunglasses, Xi Yang could feel the invisible...
Chapter 521, "Stick to One Line of Work", is the clearest early answer because it turns Gu Yu's situation into a concrete plot event. The chapter turns that into something concrete by moving from Jin Siyue had exhausted a great deal of effort to finally get through...
Chapter 644, "Has Shang Shaojing Actually Gone Bankrupt?!", is the clearest early answer because it turns Has Shang Shaojing's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Su Yinwan was already on her way home when she saw the trending...
Chapter 622, "Actually Tie Her Up?!", is the clearest early answer because it turns Zhao Lang's situation into a concrete plot event. Early on, Watching the uncommon expression on the man's face, Su Yinwan was.... By the end, Su Yinwan, pale-faced, struggled fiercely, but the vines were....