Another scenario could be related to time - travel glitches. Since she is from the future, there could be some unforeseen consequences of her being in the present. Her body might start to deteriorate due to the instability of time, and eventually she succumbs to this, resulting in her death.
One possible scenario could be that she sacrifices herself to save her friends from a powerful dark magic. In the chaos of a huge battle, she might use all her magic power to create a shield that protects everyone else but drains her life force completely.
Maybe in some fanfictions, Future Lucy is killed by a new and extremely dangerous enemy. This enemy could be targeting her specifically because of her knowledge of future events. They manage to catch her off - guard and end her life before she can warn the others.
Chapter 116, "Great Righteousness, Hunting Flood Dragons, Saliva [Five-in-One Mega Chapter]", is the clearest early answer because it turns Teng Jiao's situation into a concrete plot event. It opens with Their preparation was exceedingly thorough; they followed Xia Hong's... and closes on Amidst dealing with so many attacks, Teng Jiao's sweeping strike....
Chapter 139, "Resource Gap, Changes in the Camp [Three-in-One]", is the clearest early answer because it turns Cold Resistance Level's situation into a concrete plot event. Early on, The ones breaking through now are the second batch, mostly aged.... By the end, I've looked at these people; their enthusiasm for cultivation is much....
Chapter 130, "The New Deceitful Monster", is the clearest early answer because it turns Redwood Ridge's situation into a concrete plot event. The chapter gives readers a real answer by opening on That scream was so shrill it startled many people outside the cabin. and ending on According to He Meng's style, the Mirror Immortal Camp will likely.... In story terms, the chapter closes with "To counter soldiers with generals, water with soil.
Chapter 509, "So That's How It Works", is the clearest early answer because it turns Damien's situation into a concrete plot event. It opens with Hmm?" He has only begun his return back to where he'd laid waste to... and closes on Damien's fist slammed into its chest—harder than before, essence.... The key payoff is that the chapter closes with And he never fought fair once he did., which gives the central conflict a stronger narrative position and pushes the power growth onward.
Chapter 508, "Mapping Out The Forest", is the clearest early answer because it turns Damien's situation into a concrete plot event. The chapter turns that into something concrete by moving from Not with birdsong—there were none bold enough to sing here—but with a... to Most threats in this forest were bound to the ground—or at least....
Chapter 136, "He Yuanhun, Yuwen Hu, Yuwen Dao (Three in One)", is the clearest early answer because it turns Xia Chuan's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Yuwen Dao, along with the nine behind him, looked at the iron arrow... and follows through with The Mirror Immortal Camp, with a population exceeding ten thousand,....
Chapter 462, "Decisions", is the clearest early answer because it turns Damien's situation into a concrete plot event. The chapter gives readers a real answer by opening on By the time Damien and Apnoch returned to the training yard, the sun... and ending on They'll listen to you before anyone else." Apnoch's gaze hardened.. In story terms, the chapter closes with For now, peace held.
Chapter 148, "Mysterious Visitor, Deciphering the Cold Resistance Level [Vote for Monthly Pass]", is the clearest early answer because it pushes Xia Chuan into a new phase or setting. The setup is The difficulty in making it is indeed great, but it's worth it., but the pressure keeps building through This shield can even block arrows shot by someone at the Cold....
Chapter 131, "The Entire Hunting Team Breaks Through", is the clearest early answer because it turns Coagulated Fire Oil's situation into a concrete plot event. A useful checkpoint is the way the scene starts with The panic brought by the Deceitful Monster visibly spread throughout... and follows through with If possible, hunting was definitely the aim..
Chapter 168, "Snow Bamboo, Longyou, Sudden Wealth", is the clearest early answer because it turns Xia Hong's situation into a concrete plot event. Early on, Yuwen Dao, who had returned, saw Xia Hong observing the bamboo and.... By the end, Xia Hong took the scroll and saw that it recorded a total of....