Maybe Bella's sister has a special ability that Caius is interested in. For example, she can see glimpses of the future related to vampires. Caius, being one of the Volturi leaders, wants to use this ability for his own purposes. This could lead to a power struggle between them as she tries to resist his control while also being drawn to his mysterious and powerful presence.
One plot idea could be that Bella's sister discovers Caius's true nature as a vampire but instead of being afraid, she is intrigued. She starts to secretly study vampires and their lore, and in the process, catches Caius's attention. He then decides to keep an eye on her, leading to a series of tense yet fascinating encounters.
Chapter 106, "The Beginning of the Butterfly Effect", is the clearest early answer because it turns Butterfly Effect Thinking's situation into a concrete plot event. The chapter turns that into something concrete by moving from Thinking of this, He Yun nodded with a hint of anticipation.
Chapter 144, "She's Too Bullying!!!", is the clearest early answer because it turns Aunt Ying's situation into a concrete plot event. It opens with Ordinary people would have been at a loss in this situation by now. and closes on He then noticed the hand—fair and slender, not at all like an....
Chapter 48, "All the Bitter Teas Have Been Taken Away", is the clearest early answer because it turns Bitter Teas Have's situation into a concrete plot event. Early on, He Yun felt guilty for initially ignoring Jiang Li on purpose, and....
Chapter 114, "I've never seen someone so shameless!", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event. The chapter gives readers a real answer by opening on As time passed, the number of viewers in the live broadcast gradually...
Chapter 275, "Five Defects and Three Shortcomings", 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 Hu Zi was exceptionally cooperative, and within half an hour, all the...
Chapter 240, "He's the Last One?!", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event. The chapter gives readers a real answer by opening on Wuuuuh He Bao truly deserves it, Mom always knew you could do it!"...
Chapter 127, "He's Not Snobbish, Just Simply Bad-Tempered", 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 Witnessing Jiang Li leave with a bucket, Jiang Yan refused to admit...
Chapter 319, "Sister Xiao Wan", is the clearest early answer because it turns Jiang Cheng's situation into a concrete plot event. It opens with Staring at the screen displaying "Sister Xiao Wan," Jiang Cheng... and closes on The fate of key characters in the book will be affected, so you must....
Chapter 33, "Variety Show of Villains", 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 Following the announcement, five artists respectively reposted the...
Chapter 31, "Master, I've been having some bad luck lately!", 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 Before Shen Lan had reached the backyard, she already heard the...