A possible plot could be Nightwing getting betrayed by a close friend or ally. Maybe they were framed for something they didn't do, and this led to their heartbreak. For example, if a fellow hero believed false rumors about Nightwing and turned against him, it would shatter his trust and break his heart.
The fanfic could center around Nightwing's family. His relationship with Batman is complex. If Batman were to make a decision that Nightwing strongly disagrees with, like excluding him from a major mission or not trusting him with certain information, it could lead to Nightwing feeling deeply hurt. He looks up to Batman, and such a rift would be heart - breaking for him.
It could be his arch - enemy. For instance, the Joker might play a cruel trick on Nightwing that makes him lose someone he cares about deeply, thus causing his heartbreak.
Often, in Nightwing heartbroken fanfics, a common theme is disappointment. For example, Nightwing might have high hopes for a mission or a new partnership, but it all goes wrong. It could also be about self - doubt. After a series of bad events, he starts to doubt his own abilities and worth, which adds to his heartbroken state. The theme of isolation can also be present. He might feel so heartbroken that he isolates himself from his friends and family.
To effectively portray Nightwing's heartbreak, the author can make use of flashbacks. Show the happy times he had before the heartbreak, which will contrast sharply with his current state. The author can also have him make self - deprecating remarks. For instance, 'I'm such a fool for believing in love.' Additionally, his interactions with the environment can be a sign of his heartbreak. He might avoid going to places that remind him of the person or event that caused his pain.
One possible fanfic could involve a battle against a powerful villain. Nightwing might get injured while trying to protect Gotham. Batman then has to step in not only to defeat the villain but also to take care of Nightwing. He could use his advanced medical knowledge and resources in the Batcave to nurse Nightwing back to health.
One possible reason could be the loss of a dear friend. Naruto values his friends deeply, and if he were to lose one, it would break his heart. For example, if Sasuke were to die or turn against him completely in a way that Naruto couldn't fix, it would be a huge blow.
One idea could be a story where Beastboy and Nightwing have to team up for a mission in a new, mysterious part of the city. They start off not getting along well due to their different personalities and fighting styles. Beastboy is more carefree and impulsive while Nightwing is methodical. But as the mission progresses, they learn to appreciate each other's strengths and form a strong bond by the end.
The plot could be centered around Nightwing disobeying Batman's strict rules regarding a particular mission. Batman, seeing the potential danger Nightwing has put himself and others in, decides to'spank' him as a form of punishment. This then leads to a heart - to - heart conversation between them about trust, responsibility, and the importance of following a code.
A great plot twist could be that Nightwing is actually being mind - controlled by an enemy and Beastboy has to figure it out and save him without getting killed. Another one could be that Beastboy discovers a long - lost relative who has a connection to Nightwing's past in a very unexpected way. For example, the relative was involved in an event that Nightwing thought he knew all the details about, but this new information changes everything.
A plot idea could be that Nightwing is injured while saving a group of hostages. Batman then has to deal with the criminals who were holding the hostages as well as take care of Nightwing. The story could explore Batman's feelings of guilt for not being there in time to prevent Nightwing's injury.
One possible plot could be that Naruto discovers that his friends have been keeping secrets from him that make him feel betrayed. For example, they might have made a deal with the village elders that goes against Naruto's values. This would break his heart as he thought they were all in it together. Another idea is that the villagers, who he has tried so hard to protect and earn the respect of, suddenly turn on him due to false rumors spread about him.