One possible plot could be that the 'fox' is actually a spirit or a yokai in the Naruto universe that has taken a human form. The 'cat' could be a normal cat that has some special powers. The fox, being attracted to the cat's pureness and special powers, tries to get closer to it. But there are forces in the Naruto world that oppose this relationship, such as other yokai who see it as an abomination or ninja who are suspicious of the fox's intentions. So, they have to fight for their love and find a place in the world where they can be together.
Well, perhaps the fox could be a Jinchuriki, like Naruto who has the Nine - Tailed Fox inside him. And the cat could be a ninja with cat - like abilities, like those from the Nekomata clan. The plot could revolve around the fox - influenced character being drawn to the unique and alluring cat - like ninja, and they have to overcome various challenges in the Naruto world, like battles against other ninja clans or dealing with the politics within the Hidden Villages.
In a 'fox loves a cat naruto fanfic', the plot might start with the cat character being a new arrival in the village. The fox character, who is well - known for their strength and a bit of a loner, is immediately intrigued by the cat. As they get to know each other, they discover that they share a common goal, like protecting the village from a new threat. Along the way, their feelings for each other grow. However, there are internal conflicts too. The fox might be afraid of their own power harming the cat, and the cat might be hesitant due to the fox's wild nature. But through various adventures and self - discovery, they work towards a relationship while also fulfilling their duties in the Naruto world.