Well, in this fanfic, things might change in terms of character development. Maybe Piccolo becomes more powerful or Konna undergoes a significant transformation. Also, the story's setting or the relationships between characters could undergo alterations.
Goku is often a popular character. Even in the high school setting, his innocent yet powerful nature makes him stand out. He could be the star athlete or the student who's always getting into trouble because of his appetite.
One interesting storyline could be a new student arriving at Orange Star High School with hidden Saiyan powers. This could lead to all sorts of adventures as they try to fit in while also dealing with the emergence of their powers. Maybe they form a team with other students to compete in a school - wide martial arts tournament inspired by the battles in DBZ.
I haven't actually read this specific 'piccolo and gohan lemon fanfiction', but generally, in fanfictions involving these two characters, it might explore their relationship in unique ways. It could be about their friendship evolving, or perhaps their teamwork in new and unimagined scenarios within the Dragon Ball universe.
A major theme is identity. Since she is a female version of Piccolo, she has to come to terms with who she is compared to the original Piccolo. Family also plays a role. In some fanfictions, she might be searching for her family or creating a new family of her own. Additionally, the theme of good vs. evil is common, as she battles against various villains.
I'm not that familiar with the specific 'Brian Piccolo Thanksgiving Day story'. Maybe it could be about how he spent the Thanksgiving Day with his family, sharing a big meal and giving thanks. It might also involve some special traditions he had on that day.
I'm not entirely sure which specific 'piccolo x gohan lemon fanfic' you're referring to. But generally, if it's a fan - made story, it might explore unique relationships and character developments. It could potentially show how Piccolo and Gohan interact in a different way than in the original series, perhaps delving into their friendship or a more complex emotional bond.