Sakura could be a great protagonist. She's already a strong character in the Naruto universe, and if she were to somehow be involved with the Juubi eye in a crossover, it would be interesting to see how she'd handle the new power. Maybe she could use it to enhance her medical ninjutsu in ways never seen before.
A character from another anime or game could be a good protagonist in this fanfiction. For instance, if a character like Ichigo from 'Bleach' were to cross over into the Naruto world and gain the Juubi eye. He already has his own set of powers, and combining them with the Juubi eye would create a really unique power dynamic. He could bring his sense of justice from his own world and apply it to the situations in the Naruto world while dealing with the new power.
I think Naruto himself could still be a good protagonist even in a crossover with the Juubi eye. He's always been about breaking boundaries and achieving the impossible. With the addition of the Juubi eye, he could face new challenges and enemies. He might have to struggle with the darker aspects of the Juubi eye's power, as it's a very powerful and potentially dangerous ability. But, as we know Naruto, he'd try to find a way to use it for good and protect his friends and the village.
Chapter 491, ", Identification", is the clearest early answer because it turns Gu Hang's situation into a concrete plot event. The chapter gives readers a real answer by opening on Some people closed their eyes, some glanced with amusement, and some... and ending on Gu Hang spoke from the side: "This can't be blamed on him, and of....
Chapter 39, "A Threat To Other Threats I", is the clearest early answer because it turns Great Elder White's situation into a concrete plot event. It opens with The problem isn't that the process is speeding up! and closes on Yes, we were simply joking." The shorter of the two standing figures,.... The key payoff is that the chapter closes with Great Elder White Fang sighed and shook his head.
Chapter 13, "Essence Devourer", is the clearest early answer because it turns Damien's situation into a concrete plot event. It opens with Damien crashed on his butt as he panted heavily. and closes on That's basically an upgraded version of the Void Key we use." Damien.... The key payoff is that the chapter closes with Damien grinned as he thought about it.
Chapter 381, ", Reverse His Mother's!", is the clearest early answer because it turns Isabel's situation into a concrete plot event. The setup is Iron Curtain Queen, it's been a long time." Isabel waved her hand and..., but the pressure keeps building through Thanks to the support from all sides, Nuo Yan City has become one of.... Once the chapter lands on Let's talk about something else, something cheerful., the chapter closes with "On Heijian Star, it's much the same;
Chapter 435, ", Acting According to the Script", is the clearest early answer because it turns Starport's situation into a concrete plot event. A useful checkpoint is the way the scene starts with The artillery began to unleash its ferocity, as infantry braved the... and follows through with Yet, how could it be that from a simple civilian uprising, the Star....
Chapter 488, ", Gambling with Your Life", is the clearest early answer because it turns Interstellar Warriors's situation into a concrete plot event. The chapter turns that into something concrete by moving from The representative of the Interstellar Warriors is usually a Battle... to The Supreme Marshal of the Star Realm Army, however, does not.... What makes it stick is that the chapter closes with Norberto, who was supposed to attend as well, will certainly not come.
Chapter 392, ", Economic Reform and Development Plan", is the clearest early answer because it turns Heijian Star's situation into a concrete plot event. The chapter turns that into something concrete by moving from The Alliance system has always been overlooked by outsiders, yet it... to As soon as materials are in place and ranks are determined, many.... What makes it stick is that the chapter closes with However, while this mechanism exists, it's practically ineffectual.
Chapter 378, ", Star Language Phone", is the clearest early answer because it turns Gu Hang's situation into a concrete plot event. The chapter turns that into something concrete by moving from The so-called award ceremony was to commend Gu Hang for his... to When the Rage Bear Legion was first established, it had only about a....
Chapter 118, "Caught In A Pinch II", is the clearest early answer because it turns Nightmare Wolf's situation into a concrete plot event. The chapter gives readers a real answer by opening on The forest echoed with the sounds of battle as Damien continued his... and ending on Despite the odds, Damien's skill and strategy prevailed.. In story terms, the chapter closes with Narna's excitement was replaced with fear, and Keith gritted his teeth, drawing his blade.
Chapter 504, ", How strong will the Alliance Fleet be after 4 years?", is the clearest early answer because a shaky connection becomes usable in the plot. The chapter gives readers a real answer by opening on The Empire doesn't favor aircraft carriers, but Gu Hang has no... and ending on As long as the patrol ship manages to fire off all the firepower it....