Kakashi would be intrigued. He'd probably study Naruto more closely to see how this new influence affects his growth as a ninja. He might also try to find ways to help Naruto blend Kratos - inspired skills with his existing ninja abilities. Kakashi would be open - minded about it, knowing that new sources of inspiration can lead to great power.
Percy's reaction would be a mix of confusion and fascination. The world of Kratos is so foreign to him, with different rules and a much darker tone. However, he would also be drawn to the hero's journey that Kratos undertakes in the fanfiction, comparing it to his own journey as a demigod.
They could do strength training together. Kratos could teach Naruto some of his combat techniques that rely on pure physical power. Naruto could in turn show Kratos how to use chakra for things like enhanced speed and agility. They might also practice fighting against each other's typical enemies in simulations.
It could be a story where Naruto, inspired by Kratos' strength and tenacity, decides to train in a similar way. Maybe he takes on some of Kratos' combat styles and uses them in the Naruto universe, like using his chains to grapple enemies just like Kratos' Blades of Chaos.
There might be a fanfiction where Naruto somehow gets transported to Kratos' realm. Naruto, with his never - give - up attitude, could try to befriend Kratos. He might see the pain and anger in Kratos and try to show him a different way. And they could team up against some common enemies in Kratos' world, like some of the gods or demons there.
They could interact through combat. Kratos is a very battle - hardened warrior, and Naruto is no slouch either. They could start off as opponents, with Kratos seeing Naruto as a strange and potentially dangerous being in his new world. But as they fight, they come to respect each other's skills.
If Naruto were Kratos' son in a fanfiction, the story could go in many directions. Naruto might have a different view on power. Instead of seeking recognition like he did in the original story, he could be more focused on using his power to right wrongs in a more forceful way. His relationships would also change. For example, his bond with Sasuke could be more of a rivalry based on power, similar to how Kratos has his own rivalries. And his training would be a combination of ninja training and whatever training Kratos would give his son, which might involve more physical and mental endurance challenges.
At first, Kratos might see Naruto as a weakling because he doesn't look as physically imposing as the warriors in his world. But when Naruto shows his combat skills and his ability to quickly adapt in battle, Kratos would start to see him as an equal. Naruto would be in awe of Kratos' strength and might try to learn from him. They would have a relationship that grows from mutual suspicion to mutual respect. For example, Naruto could offer his help when Kratos is facing a horde of enemies, and Kratos would in turn protect Naruto when he is in a vulnerable situation.
Naruto might gain superhuman strength like Kratos. He could easily break through solid rock or lift extremely heavy objects. His speed could also increase, allowing him to move so fast that enemies can barely see him. Maybe he could also have the ability to summon the blades of chaos, which he could use in combat in a unique way, like combining them with his kunai.