Well, perhaps the plot could revolve around Grian seeing Ellen as his perfect match in the chaotic world of Yandere High School. He could start by leaving little anonymous gifts for her. As time goes on, when other students show interest in Ellen, Grian's yandere side kicks in. He begins to follow her around secretly to protect her from these 'rivals' and things get really complicated when Ellen accidentally discovers his stalking behavior.
One possible plot could be that Grian, in his yandere state, becomes overly possessive of Ellen. He might try to isolate her from her other friends at high school. For example, he could spread rumors about them to make Ellen distance herself. Then, as the story progresses, Ellen starts to notice Grian's strange behavior and tries to confront him, leading to a tense and dramatic confrontation.
At first, Grian might be drawn to Ellen because of her kindness or a particular talent she has. He would be very shy around her, but his yandere side would make him constantly think about her. As time passes, he would start to make small efforts to be closer to her, like sitting next to her in class. Ellen might find Grian a bit strange but also endearing. However, as Grian's yandere traits surface more, such as when he gets angry if she misses a chance to have lunch with him, Ellen will become more cautious. Their relationship would then develop into a tense dynamic where Grian is constantly trying to hold on to Ellen while Ellen is trying to figure out what's going on and how to deal with it.
Well, in the Naruto x Yandere Hinata School Fanfic, it could be about how Hinata's yandere tendencies develop in school. She could be in the same class as Naruto. As the story progresses, her feelings for Naruto turn into an all - consuming obsession. She might start daydreaming about Naruto during classes and then get jealous when she sees Naruto chatting with other girls during lunch break. This could lead to some interesting and tense situations in the school environment.
The plot could also involve a school project where Naruko and Sasuke are forced to work together. At first, they clash because of their different personalities. Sasuke is more reserved and focused on his own goals, while Naruko is outgoing and wants to make the project a group effort. But through the process of working on the project, they develop a deeper understanding and perhaps even a romantic connection.
The plot might involve Yusei being a new student in high school. Akiza is assigned to be his guide for the first week. She shows him around the school, introduces him to different teachers and classmates. As they spend time together, Akiza notices that Yusei has a unique way of looking at things. Yusei, on the other hand, is attracted to Akiza's energy. They start to develop a bond over their shared experiences in the school, like participating in a school fair. Their relationship evolves from a friendly acquaintance to something more romantic as the school year progresses.
In a vegeta x bulma high school fanfiction, it could be that there is a school dance coming up. Bulma is determined to go with the most popular guy in school, but Vegeta, who has a secret crush on her, decides to enter a dance - off to win her over. Along the way, they face challenges from jealous classmates and misunderstandings, but in the end, they realize their true feelings for each other.
Maybe in this high school fanfiction, Naruto is the new kid at school. Sakura is one of the popular students. Naruto tries to fit in and ends up joining a club that Sakura is also in. They start off as acquaintances but then Naruto's brave and positive attitude starts to attract Sakura. There could be a rival for Sakura's attention, which makes Naruto work even harder to show he's the better choice. And as they face challenges together in the club, their relationship deepens.
One idea could be a yandere character who is secretly in love with Issei but her yandere tendencies start to cause chaos in the Occult Research Club. She might try to eliminate any girl who gets too close to him, leading to a lot of drama and action within the club.
They could be in a situation where they are competing for the same goal. For example, they both want to be the top student in their class. Yandere Chan might use some underhanded methods at first, but Oka Ruto's integrity makes her question her own actions. This could lead to a change in Yandere Chan's approach, and they could end up having a healthy competition that benefits both of them in the long run.
One possible plot could be that Naruto and Hinata are transferred to the High School DxD world. Naruto's powerful ninja skills might make him stand out, while Hinata's shy yet strong - willed nature could attract different reactions. Maybe they have to face the devils and angels in this new world together, with Naruto using his Rasengan and Hinata her Gentle Fist techniques to protect their new friends and find a way back to their own world.
One possible plot could be that Sasori and Deidara are assigned as partners for a school project. At first, they don't get along because of their different personalities. Sasori is more reserved and detail - oriented, while Deidara is impulsive and creative. But as they work together, they start to understand each other better. They discover their shared love for art in different forms. Sasori with his puppetry which is like a form of sculpture, and Deidara with his explosive art. Eventually, they become good friends and support each other in their artistic pursuits at school.