Saitama would win. He has shown incredible strength with just one punch. His power seems limitless, and in a fanfiction scenario, his simplicity and raw power would likely overpower Jiren's more complex abilities.
One possible plot twist could be that Jiren discovers a way to nullify Saitama's strength. Maybe he finds some sort of energy - draining technique that weakens Saitama over time. Another could be that Saitama holds back for some reason, like he wants to see the full extent of Jiren's power, and in doing so, he gets into a real struggle.
In this fanfiction, Goku vs Jiren is likely to be an epic battle. Goku's power with the Universe's Watch might bring new and unexpected abilities. Jiren, on the other hand, is an extremely powerful opponent. The fight could involve intense energy blasts, high - speed combat, and strategic maneuvers. It might also explore the growth of Goku's character and his newfound power in relation to Jiren's unwavering strength.
In the fanfiction, the plot could develop such that the power of the universe's watch attracts other villains or powerful beings. They might try to steal the watch from Goku during his battle with Jiren. This would add a new layer of complexity as Goku has to fend off these new threats while still trying to defeat Jiren.
The story of Kayo and Taizi Hui began when they met in Jianghu. Kayo was a person who paid attention to the morality of Jianghu. Because of his ability and character, he gradually made a name for himself in the underworld and was respected by many people. Tai Zihui was a very famous person in Shen Zhen. The two of them had met because of a conflict that almost led to a fight. However, their relationship quickly turned into brotherhood, relying on each other's loyalty. Kayo understood Taizi Hui and knew that he was too embarrassed to ask for help when he encountered problems, so when Taizi Hui encountered difficulties, Kayo took the initiative to help him. The friendship between them deepened after a business partnership was played. In the end, Kayo and Taizi Hui faced the behind-the-scenes boss, Liang Yaohui, and started a huge battle. Their story was filled with the benevolence and brotherhood of the Jianghu.
There probably is. Fanfiction is a vast world where all kinds of ideas are explored. Since Naruto and Jiren are from different anime universes, a fanfiction about Naruto being a fan of Jiren could be really interesting. It might involve Naruto somehow learning about Jiren's power and being in awe of it. Writers could play around with different scenarios like Naruto trying to train like Jiren or even seeking his advice in the fanfiction world.
I'm not sure specifically as I haven't read it. It could be about a character named Kayo and her house, perhaps her experiences and stories that take place within or around the house.