Danzo could also be the one to make Naruto angry. Danzo's underhanded tactics and secrets might be exposed in the fanfiction, and if they were to directly harm Naruto's friends or the village, Naruto would be furious at his actions.
Natsu was looking forward to a delicious meal at the guild. But when he found out that someone had eaten all of his favorite food, his anger flared up. 'Who did it?' he growled, his eyes darting around the guild hall. No one answered, which only made him angrier. His nostrils flared as he stomped around, demanding answers. Erza tried to calm him down, but Natsu was beyond reason at this point. 'I'll find out who it was and they'll pay!' he shouted, his voice echoing through the hall. His hair seemed to stand on end as his anger reached new heights.
There could be. Fanfiction is a vast world of creativity. Since Luffy and Nami are popular characters in 'One Piece', it's not surprising that some fans might come up with the idea of them secretly getting married. However, not all fanfictions are easy to find. You might need to search on specific fanfiction platforms and dig through a lot of content to locate such stories.
One possible reason could be a misunderstanding. Maybe Deeks misinterprets something Kensi says or does, leading to his anger. For example, if Kensi takes on a dangerous mission without consulting him, he might get angry out of concern for her safety and this could escalate into a fight.
Well, perhaps in the fanfiction the Hogwarts staff might have been unfair in grading his exams. Like giving him lower marks than he deserved just because they had some sort of prejudice against him. It could also be that they wrongly accused him of something he didn't do, like misbehaving or cheating. Another reason could be that they failed to protect him or his friends from some sort of danger at Hogwarts.
Well, sometimes in these fanfictions, Kuroko might get angry when his plans on the court are constantly disrupted. He's a strategic player, so if his teammates don't follow his lead or if the opponents manage to anticipate and counter his every move, it could push him over the edge. Also, if there's a situation where the team is about to lose because of someone's negligence, Kuroko's anger might flare up as he has a strong desire to win and see his team succeed.
One popular scenario could be a heroic moment where Luffy saves someone, like a princess from an enemy, and as a sign of gratitude, she gives him a quick, innocent kiss on the cheek. Another might be in a more comical situation, perhaps at a big celebration on the ship and a crewmate's sister, who has a bit of a crush on Luffy, gives him a peck on the forehead. There could also be a scenario where an old friend from Luffy's childhood, who he reunites with after a long time, kisses him on the hand as a sign of how much she has missed him.
The author can use vivid descriptions of his facial expressions. For example, 'Harry's face turned red, his eyes blazing with fury as he clenched his fists.' This gives the readers a clear visual of his anger.
There's a fanfic titled 'Anger Unleashed'. Here, Naruto's anger is triggered by false rumors spreading about Sakura in the village. His anger makes him confront those who started the rumors and he also becomes more determined to prove Sakura's innocence and his loyalty to her.