Well, it could be that '13' is an alien entity that crash - lands near a river on Earth. The fanfic could then explore how this alien, which is completely out of its element, tries to adapt to the new environment around the river. It might encounter local wildlife, humans, or other strange phenomena related to the river. Another plot could be that '13' is a cursed object or person, and the river has the power to break the curse. So the story would revolve around '13' trying to reach the river and overcome the obstacles in the way to be freed from the curse.
One possible plot could be that Ash finds an injured Zorua and decides to take care of it. As Zorua heals, it forms a strong bond with Ash and starts to accompany him on his Pokémon journey. They might face a trainer who specializes in dark - type Pokémon and Zorua has to use its skills to help Ash win the battle.
One plot idea could be that a character is moving to a new place where sakura trees are abundant. They are packing their bags with memories and items important to them. As they unpack in their new home surrounded by sakura, they discover new things about themselves and their past. Another could be a group of friends going on a sakura - viewing trip and they each have special bags they pack with picnic items and things to enjoy the day. During the trip, some secrets are revealed among them.
A simple plot could be that Link accidentally enters a magical realm where time and space are distorted, and he meets his younger self. His younger self is naive and eager to prove himself, while the older Link has more experience. They initially clash but then realize they need to work together to escape the realm.
One plot idea could be that Naruto is sent on a special mission to a far - off land where MILF - type ninja are the norm. There, he impresses them with his skills and they form a harem around him. Another could be that some kind of magic or curse makes older women in the Leaf Village suddenly become attracted to Naruto, and they start to gather around him.
A possible plot could involve a dark wizard from the Harry Potter world teaming up with a powerful sea - based villain in the ship girl world. Harry has to form an alliance with the ship girls to stop them. Along the way, he discovers that there are hidden magical elements in the ship girl world that are connected to his own magic. He then uses this knowledge to strengthen the bond between him and the ship girls and ultimately defeat the villains.
In a 'Percy Jackson meets Chaos' fanfiction plot, perhaps Chaos has lost an important artifact that holds the key to maintaining the balance between order and chaos. Percy is chosen to retrieve it because of his unique skills and his connection to different mythologies. However, the artifact is guarded by powerful beings that are loyal to the chaos - loving enemy. Percy has to use his wits, his powers, and the help of some unexpected allies, such as minor primordial deities or spirits, to get the artifact back and restore the balance.
One possible plot could be that Kirara and Kyoro are on a quest together in a magical world. 'gj bu' could be the name of the magical land they are in. They face various challenges and their relationship grows stronger as they overcome them.
One plot idea could be that a former Hogwarts student, who was bullied and humiliated, returns as the 'fallen one' with newfound dark magic powers. They start by targeting their old bullies and then expand their revenge to the whole school, causing chaos in Hogwarts. Another could be a wizard who was wrongly accused of a crime and lost everything. Now, they want revenge on the Ministry of Magic and those who wronged them. They might start a secret rebellion using dark and forbidden magic.
Maybe Naruto is on a mission to save a Hozuki clan member from a powerful enemy. During this mission, he discovers new jutsu and forms alliances within the Hozuki clan. He also might face challenges as he tries to balance his normal ninja life with his new connection to the Hozuki. Another idea is that the Hozuki clan has a prophecy related to Naruto, and he has to fulfill it to save both the Hozuki and his own village.
A possible plot could be that there is a mysterious force that resides in all the rivers. The main character, a curious adventurer, sets out to discover what this force is. Along the way, they encounter different people who have their own stories and beliefs about the rivers. There could be elements of magic or the supernatural as the character gets closer to uncovering the truth about this mysterious river - related force.