Perhaps they start off as rivals, each thinking the other is in their way. But as they get to know each other better, they realize they have more in common than they thought and end up becoming friends or even something more. They could then use their combined abilities to take on the corrupt elements in their world.
One possible plot could be that they team up to fight a common enemy. Their different skills and personalities would make for an interesting dynamic during the battles.
A plot could involve Nightbitch getting into a dangerous situation that only Hitgirl has the skills to get her out of. Hitgirl, being the badass she is, rescues Nightbitch. After that, Nightbitch feels indebted to Hitgirl and decides to join her in her crusade against evil. Along the way, they develop a deep bond, learning from each other's strengths and weaknesses as they face various challenges together.
Finding 'hitgirl x nightbitch fanfiction' can be a bit of a challenge. First, not many people may be familiar with this particular pairing. Second, even if there are some works out there, they might not be easily accessible. You can start by using relevant keywords in your search on different fanfiction platforms. Also, reaching out to the fan communities of the original works these characters are from might give you some leads on where to find such fanfictions.
One idea could be that they team up to fight a common enemy in a world where the bad guys are more powerful than ever. They combine their unique skills, Hit Girl's martial arts and Nightbitch's special abilities, to take on this new threat.
A plot could revolve around a world where sarees have some sort of magical power. Saree, the character who wears this saree, accidentally stumbles upon Bumblebee. The saree's magic starts to interact with Bumblebee's technology in strange ways. This leads to them having to figure out how to control these interactions while also being chased by a group who wants to use the saree - Bumblebee connection for their own evil purposes.
In a more complex plot, Raditz could be sent back in time and he meets a young Launch. They end up on an adventure together, facing various enemies and challenges. Along the way, they start to develop feelings for each other, which is complicated by Raditz's knowledge of the future and his original mission.
One idea could be that Lambo, with his time - traveling abilities, accidentally transports himself to the world of Reborn. There, he meets the characters and gets involved in their mafia - related adventures. Maybe he uses his ten - year - bazooka in unexpected ways to help the Reborn crew in battles.
One plot idea could be that Sakura discovers some long - lost scrolls left by Kushina. Through reading them, she starts to have dreams about Kushina and gradually forms a connection. As she delves deeper into Kushina's past, she realizes they have more in common than she thought, and a bond forms between them.
Maybe Utakata is on a journey and stumbles upon Yagura who is in some sort of trouble. Utakata decides to help him out, and during this process, they discover they have more in common than they thought. This could lead to a deep bond between them.
One idea could be that Rudolph and Tony are from different worlds. Rudolph is a magical being from a winter wonderland, and Tony is a regular human. They meet by chance, and Rudolph's magic starts to have an unexpected impact on Tony's life, leading to a series of adventures as they learn to co - exist and understand each other.
Well, it could be about a wacky adventure where Screwball, being his zany self, stumbles upon Mothball in a strange place. Maybe they have to team up to solve a mystery in their fictional world.
One possible plot idea could be the exploration of how Mitsuri and Obanai deal with the impending arrival of their baby. Maybe they face challenges like preparing a safe home in their demon - slayer world. Another could be the reactions of their friends and comrades to the news.