The manga girl might be yelling at the boys because they broke a promise or invaded her personal space. Sometimes, even small things can trigger a big reaction like this.
It could be that the boys were teasing her or not listening to her, causing her to lose her temper and yell. Or perhaps there was a misunderstanding between them.
Maybe she's really angry or frustrated about something that happened in the story.
It could be for various reasons. Maybe she's expressing intense emotions like anger or fear.
It could be to add drama or express intense emotions. Sometimes it makes the scene more exciting and catches the reader's attention.
Maybe she's having a really bad day and taking it out on others.
Maybe the cat scratched her or made a mess.
Maybe she's angry or scared. It could be a reaction to something that happened in the story.
Maybe the boy did something wrong and made the girl angry.
Perhaps the boy teased or insulted the girl, causing her to lose her temper and start yelling at him.
Maybe they're having an argument or playing a loud game.
Well, there could be several reasons. Maybe she saw something in the water, or there was an argument with someone on board. Or perhaps she's just having a moment of pure emotion without a specific cause.