One possible scenario in this fanfiction could be that Sakura realizes her long - hidden feelings for Naruto when she sees Hinata getting closer to him. She might start to act out in small ways, like being a bit more snippy with Hinata during team meetings or training sessions. However, she also has to deal with her own sense of pride and the fact that she once rejected Naruto.
One manifestation could be that Leo tries to outdo Percy in various tasks. For example, if there's a competition within the story, Leo will go all out to win just to show that he's as good as or better than Percy.
There might also be a rival character. This rival could be competing with Chie Hori in something, like a school competition or a talent show. Their interactions would add drama and tension to the fanfic.
One popular 'chie hori fanfic' story could be about her adventures in a magical world. Maybe she discovers she has special powers and has to use them to save her friends.
Sakura has always been a confident girl, but when it comes to Hinata, she can't help but feel a tinge of jealousy. Hinata's gentle and shy nature seems to draw people in, especially Naruto. Sakura notices how Naruto's eyes soften when he looks at Hinata. One day, at a village gathering, Sakura sees Hinata and Naruto chatting happily. She feels a pang of envy, but she quickly shakes it off. She realizes that she has her own strengths and that jealousy won't get her anywhere. So, instead of dwelling on it, she decides to focus on her own growth as a ninja.
One great fanfic could be 'Jealousy in Hogwarts Halls'. In it, Harry's jealousy of Percy might stem from Percy's academic achievements and the way he's always so well - regarded by the teachers. It shows how Harry, who already has so much on his plate, struggles with this new emotion. It's a really interesting take on the characters and their relationships within Hogwarts.
One possible scenario could be that in the fanfiction, Naoki sees another guy getting too close to Kotoko. He starts to act coldly towards Kotoko at first, out of his own confusion about his jealous feelings. But then he realizes he can't stand the thought of losing her and finally admits his jealousy and love for her.
In fanfiction, Naruto might be jealous because he thinks that Kiba has something he doesn't when it comes to Hinata. For example, Kiba could be more confident around Hinata, while Naruto is still a bit shy about his feelings for her. This contrast could fuel Naruto's jealousy.