First, know both universes well. For a 'Percy Jackson Crossover Fanfic', you need to be familiar with the Percy Jackson world, like the gods, demigods, and Camp Half - Blood. Also, understand the other universe you're crossing it with. This knowledge will help you create believable interactions between characters.
Create an interesting plot. Maybe start with a problem that can only be solved by the combined efforts of characters from both worlds. For example, if you're crossing with the Star Wars universe, a threat that requires demigod powers and the Force to defeat. Develop the characters' relationships as the story progresses. Show how they grow to trust and rely on each other.
Keep the tone consistent with the Percy Jackson series. Percy has a certain sense of humor and a way of dealing with things. Try to maintain that in your fanfic, even when introducing new elements from the other universe. Also, don't be afraid to be creative and put your own spin on things. Add new monsters or unique settings that combine features from both worlds.
The best chapter pointer here is Chapter 139, "I Will Help You Chase Shang Shaojing!". It opens with Wen Jiaojiao's live stream was inundated with a wave of question marks. and closes on The audience in the live stream didn't know about Wen Jiaojiao's inner....
A practical answer is Chapter 153, because it turns the idea into a concrete scene. The chapter opens with Wisps of smoke gradually rose from the small kitchen., adds pressure through But the next second, Jiang Li looked up, with a sincere face she said,..., and ends on After leaning in, he saw.
Look to Chapter 173 for the clearest answer. It begins with Jiang Li finally rose from her seat., keeps building through Seeing her stand up, He Yun also stood up., and lands on Yet Miss Su went out of her way to ask me not to be angry..
If you want the clearest chapter reference, go to Chapter 159. Early on, Seeing the red light of the camera turn on, Su Yinwan looked at the...; later, the chapter leans on Sorry, director, it was my staff who didn't arrange things well, that's....
Chapter 153 is the strongest chapter-level answer because it starts from Wisps of smoke gradually rose from the small kitchen. and follows through on After leaning in, he saw Jiang Li and Zhao Lang inside the kitchen..
Look to Chapter 190 for the clearest answer. It begins with Several people who didn't understand fell silent., keeps building through Director Sun, what play are you putting on now?, and lands on Because he saw the pack of cigarettes pinched between Jiang Li's fingers..
A practical answer is Chapter 154, because it turns the idea into a concrete scene. The chapter opens with Hahaha, I'm dying of laughter, Lili, do you really have to be so blunt?"..., adds pressure through It stated two clear characters—"Jiang Li., and ends on Helplessly, Director Sun could only.
If you want the clearest chapter reference, go to Chapter 191. Early on, This change made Jiang Cheng extremely uncomfortable.; later, the chapter leans on It was as if he had been an outsider from the very beginning..
A practical answer is Chapter 167, because it turns the idea into a concrete scene. The chapter opens with By the experimental field, Qi Tianyu was quite helpless as he watched Wen..., adds pressure through I'm not familiar with the others;
A practical answer is Chapter 166, because it turns the idea into a concrete scene. The chapter opens with Only after everyone in the small courtyard had left, did Zhao Lang stride..., adds pressure through Fans can't bear to watch anymore.], and ends on However, after interviewing the villagers.