One really bad intro could be 'There was a thing. It happened. That's all.' It's super simple and unengaging, not giving any details or creating any intrigue.
Start with a catchy opening that showcases your passion for fiction. Then, briefly introduce your story and explain why it's unique. Highlight relevant writing experiences and skills. Keep it concise and engaging.
Yes. In some Percy Jackson fanfiction, he can be depicted as a rockstar. Writers often like to take characters from their original settings and put them into different and exciting scenarios, like being a rockstar.
It could be. Sometimes movies or shows labeled as 'Rockstar' draw inspiration from real-life events or people, but it might also be completely fictional.
No. The idea of a 'dick contest' is inappropriate in itself and has no positive equivalent in Naruto fanfic. Naruto fanfics are centered around the world of ninjas, their training, battles, and relationships, which are positive aspects of the story.