There could be a fanfiction where Naruto's little sister is sent on a special mission. She has to go undercover in an enemy village. Along the way, she makes new friends who are initially suspicious of her but come to respect her as they see her determination and kind heart. She also uncovers a plot that could endanger both her village and the one she's infiltrated.
A really cool fanfiction might involve Naruto's little sister having a special bond with the tailed beasts. She can communicate with them in a way that Naruto can't. This leads to her helping Naruto better understand the power of the tailed beasts and how to control his own. It could also put her in a position where she has to protect the tailed beasts from a new, unknown threat.
One interesting story could be about the little sister getting involved in the turtles' training sessions and bringing a new dynamic to their routine. For example, she might show them a different way of approaching a combat move.
Some 'hetalia little sister fanfiction' focuses on her daily life. She could be living with one of the Hetalia characters and having to deal with their strange habits. For instance, if she lives with Italy, she might have to get used to his love for pasta and his laid - back attitude towards everything.
A great fanfiction idea could be a Little Sister's rebellion against the established order in Rapture. She starts to question why she has to harvest ADAM and decides to fight against those who control her. This could involve her teaming up with other splicers who also want to change the system in Rapture.
One interesting 'little naruto fanfiction' could be about Naruto having a secret animal friend that only he can communicate with. It adds a new layer to his adventures in the Hidden Leaf Village.
One interesting story could be about a character having a sister complex and how it affects their relationships within the Naruto universe. For example, they might be overly protective of their sister figure and get into conflicts with others because of it.
One interesting Naruto sister OC fanfiction could be about a sister who has a unique hidden power. For example, she might be able to control the elements in a different way than the known ninja in the Naruto world. Maybe she can combine fire and water to create a new type of jutsu that no one has ever seen before. This would add a new dynamic to the story and her interactions with the other characters.
One interesting 'Sam and Dean little sister fanfiction' story could be where she has special powers that she has to keep hidden from the supernatural world while still being part of Sam and Dean's hunting adventures. For example, she might be able to communicate with spirits in a different way than her brothers, which adds a new dimension to their investigations.
One interesting Hunger Games little sister fanfiction could be about the little sister becoming a secret rebel leader. She might use her wits and charm to gather support among the districts without the Capitol noticing. For example, she could start by secretly spreading anti - Capitol propaganda through coded messages in the marketplace.
Well, in some Gohan's Little Sister fanfiction, she might play a crucial role in a big battle. For example, she could use her intelligence to outwit the enemies when the Z - fighters are in a tough spot. She might also have a special bond with a particular character that affects the course of the story, like an unlikely friendship with a villain who then has a change of heart because of her.
One interesting fanfiction could be about Spencer's little sister getting involved in the mystery-solving adventures alongside the main characters. She might use her unique perspective and skills to help uncover secrets in Rosewood.