One reason is the sense of nostalgia combined with novelty. We all remember Ash as the young, enthusiastic trainer. In older fanfiction, that essence is still there but with added layers of maturity. It's interesting to see how he would handle situations as an adult. For instance, he might have to make decisions not just for himself but for the greater good of the Pokemon world. His character development can be taken in so many new directions, whether it's in terms of his leadership skills, his knowledge of Pokemon lore, or his interactions with other trainers who are now in different positions in the Pokemon universe.
Well, it allows for new and exciting storylines. When Ash is older, he can face different challenges. Maybe he has to deal with the next generation of villains who are more cunning and powerful. Fanfiction writers can explore his relationships in a more mature way too, like his romantic interests which were not really explored much in the original series. Also, we can see how his skills have evolved over time, like his battle strategies and his ability to understand different Pokemon types better.
Chapter 35 is the strongest chapter-level answer because it starts from Shining Transformation Trip's filming location was set on the distant... and follows through on Brother is really hardworking, actually arriving at the same time as the....
A practical answer is Chapter 79, because it turns the idea into a concrete scene. The chapter opens with Jiang Li leisurely said, "I bought this weeding machine, and according to..., adds pressure through Many had even spontaneously formed a fan group for Jiang Yan, promoting..., and ends on.
If you want the clearest chapter reference, go to Chapter 26. Early on, Shen Lan was bent over processing a large stack of press briefs on her...; later, the chapter leans on She was nearly forty years old, but because she took good care of herself....
Chapter 78 is the strongest chapter-level answer because it starts from He Yun, too, tidied up and walked over to rest in the shade of a tree. and follows through on [HAHAHA, is it just me or does Movie Emperor He seem to be showing off a....
If you want the clearest chapter reference, go to Chapter 58. Early on, Facing Jiang Yan's triple barrage of questions, Jiang Li's only response...; later, the chapter leans on After a long while, she yawned indifferently and said, "I didn't pick up....
Chapter 11 is the strongest chapter-level answer because it starts from After a meeting, Shang Shaojing pinched the bridge of his nose, tired, and... and follows through on Miss Qin, please accompany us to the police station to explain this....
If you want the clearest chapter reference, go to Chapter 26. Early on, Shen Lan was bent over processing a large stack of press briefs on her...; later, the chapter leans on She was nearly forty years old, but because she took good care of herself....
The best chapter pointer here is Chapter 39, "Is This Book an Out-of-Print Buddhist Scripture?!". It opens with Qi Tianyu had been looking forward to watching Jiang Li's drama unfold. and closes on His original intention was just to make Jiang Li back off gracefully,....
Chapter 889, "Nice to meet you for the first time, please take care of me!", is the clearest early answer because it turns Zhao Lang's situation into a concrete plot event.
If you want the clearest chapter reference, go to Chapter 16. Early on, Just as the words fell, Jiang Shixu swiftly cast his eyes downward.; later, the chapter leans on His eyelashes were very long; when they fell, they could cast a small....