I don't know who created 'el gato secret story' as there's not enough information given. It could be an independent author or a small publishing house.
Since we don't have much information about 'el gato secret story', it could be a variety of things. It might be a children's story, in which case the secret could be something simple and innocent like the cat's favorite hiding spot in the garden. Or it could be a more complex story for an older audience, perhaps involving a mystery that the cat is trying to solve, or a secret that has to do with the cat's past or its family. It could also be a cultural story specific to a certain region where cats hold a particular significance and the secret is related to that cultural meaning.
Well, without having read 'viviendo con el emperador' web novel, we can only speculate. It may tell a story of a common person who suddenly finds themselves in the presence of an emperor. This could lead to a series of adventures, like getting involved in palace conspiracies, or learning about the emperor's secrets. It might also be about the cultural and social aspects of the imperial era that the characters are living in.
Finding the 'viviendo con el emperador' web novel can be a bit of a challenge. You could try doing a general web search using search engines like Google. Include the full title in the search query. If it's a relatively unknown web novel, it might be on smaller, more niche web novel communities or forums. You can also ask in online groups dedicated to web novels if anyone has come across it.
Naruto could use his improved taijutsu skills. He might close in on Gato quickly and land a series of powerful punches and kicks that Gato can't defend against. Since Naruto is quite fast and has good reflexes, he could easily overwhelm Gato in close - combat.
Well, one possible plot could be that Gato has some new evil plan in the Land of Waves. Naruto, having grown stronger, decides he can't let Gato harm the innocent people there anymore. He uses his new jutsu and his quick thinking to outwit Gato's men first. Then, in a final showdown, Naruto unleashes a powerful Rasengan, directly hitting Gato and killing him, thus saving the Land of Waves from Gato's tyranny.