There could be. Fanfiction often explores different scenarios and relationships. But it can be a bit difficult to find as it depends on the popularity of the characters Tomoe and Nanami in the fanfiction community. You may need to search through multiple fanfiction websites like Archive of Our Own or FanFiction.net to see if such a story exists.
One possible plot could be that Tomoe and Nanami have a deepening relationship, and an unexpected pregnancy occurs which then forces them to face various challenges together, like how to deal with their families and their own future.
Some fanfictions may have Nanami getting hurt as a result of overusing his cursed energy. He pushes himself too far in a fight, and his body starts to break down. This can create a very tense situation as his colleagues worry about his well - being and try to find a way to heal him. It also gives an opportunity for character development, as Nanami may have to face his own limitations.
Another possibility is a jealous rival. Maybe there's someone who is jealous of Gohan's power or his relationship with certain characters. This rival could do things to annoy Gohan and push him to the edge of his temper.
A new player on an opposing team could be the cause. This new player might be overly cocky and disrespectful towards Kuroko during a game. They could constantly taunt him about his lack of presence, which finally gets on Kuroko's nerves and makes him mad.
It could be Vegeta. Maybe Vegeta does something really underhanded like stealing Goku's senzu beans or trying to take all the credit for a victory that Goku also contributed to. Goku, being a fair - minded person, would get angry at such behavior.
One of his friends could be the cause, accidentally. Maybe a friend makes a deal with a shady character without realizing the consequences. This deal ends up putting everyone in danger, and Yami gets mad at his friend's naivete and the mess they've created.
He might become withdrawn at first. Since he's used to being in control and having a certain dynamic in their relationship, Bella's anger could shock him into pulling back. He could go off on his own for a while to think about what he did wrong.
Nobara Kugisaki and Megumi Fushiguro could also be among those who help. Nobara is a strong - willed and capable sorceress. She would be concerned about Nanami's well - being and use her skills to assist him. Megumi, being a calm and intelligent sorcerer, would likely come up with a plan to rescue or heal Nanami. They all share a sense of comradeship within the Jujutsu Kaisen world.
Definitely Doofenshmirtz. He could mess with one of Phineas and Ferb's inventions in a way that really ticks Phineas off. Like he might use one of his -inator devices to turn their amazing flying machine into a pile of junk. Phineas would be furious and would then set out to fix it and get revenge on Doofenshmirtz.