A plot could revolve around Makoto being aware of Junko's yandere tendencies but trying to reform her. He constantly battles her dark desires and possessiveness with his own belief in the good of people. This creates a constant tug - of - war between them, with Junko's love for Makoto becoming more and more warped as she tries to keep him to herself against his will.
A possible plot is that Makoto gradually realizes Haru's yandere nature. At first, he might be confused and a bit scared. But as he truly loves Haru, he tries to understand and help Haru overcome these tendencies. This could lead to a journey of self - discovery for both of them as they navigate their relationship.
The relationship could start with Junko being intrigued by Makoto's naivete. She begins to stalk him subtly, leaving little hints that she's interested. As time passes, she becomes bolder and starts interfering in his daily life more directly.
One idea could be that Monokuma, in an unexpected turn, decides to spare Makoto from a difficult trial situation. Maybe he sees something unique in Makoto's will to survive and his positive attitude. This could lead to a strange sort of alliance where Makoto tries to understand Monokuma's motives better.
A plot idea might be that Sasuke, in his yandere state, secretly follows Naruto everywhere. He then starts to eliminate any potential danger to Naruto, even if Naruto doesn't see it as danger. For example, if a merchant is a bit rude to Naruto, Sasuke might find a way to drive the merchant out of the village. Also, Sasuke could be very controlling about Naruto's missions, trying to ensure that he's always by Naruto's side during them.
One plot idea could be that Kise, in his yandere state, becomes overly possessive of Kuroko. He might try to isolate Kuroko from his other friends, like the Generation of Miracles. For example, he could spread false rumors about them to make Kuroko distance himself. Another idea is that Kise secretly follows Kuroko everywhere, taking pictures of him without his knowledge and creating a sort of 'private collection' which he treasures dearly. It could also be a story where Kise's yandere tendencies are triggered by another character showing too much interest in Kuroko, leading to a conflict between his love and his dark side.
One plot idea could be Thor becoming overly possessive of Loki after Loki gets too much attention from other Asgardians. Thor starts to isolate Loki, thinking it's for his own good. Another could be in a situation where Loki is injured, and Thor's yandere side emerges as he refuses to let anyone but himself tend to Loki. A third idea is that Thor, in his yandere state, tries to make Loki dependent on him by controlling all aspects of Loki's life in the name of protecting him.
Well, a possible plot could be set in an alternate universe where Kaguya is resurrected as a yandere. She sees Naruto as the key to her new world order and her yandere love makes her go to extreme lengths to get him on her side. Maybe she uses her powers to create illusions that only Naruto can see, trying to manipulate his perception of reality and draw him closer to her.
There's a fanfiction called 'Hope in Despair' that really stands out. In this story, Makoto tries to redeem Junko from her path of despair. It shows a unique take on their relationship as Makoto uses his unwavering hope to try and change Junko. It's a great read for those interested in seeing how their opposing ideals could interact on a more personal level.
One idea could be that Yandere - chan initially tries to eliminate the male rival but then discovers they have a shared interest, like a love for a certain type of art. So she starts to have mixed feelings between her yandere tendencies and this newfound connection. Another plot could be that the male rival is actually not as he seems. He could be a secret agent or something, and Yandere - chan has to figure out his true identity while also dealing with her feelings for him. A third plot could involve a love triangle where there's another character who also has feelings for Yandere - chan, and the male rival has to compete not only with Yandere - chan's yandere nature but also this third party.
One idea could be that the yandere girl secretly follows the male reader everywhere. She might leave little 'gifts' for him, like a love note or a small trinket, but in a way that starts to seem a bit creepy as he realizes she knows his every move.