Well, Naruto might gain a lot of power quickly. Orochimaru has a vast knowledge of jutsu and forbidden techniques. However, he would be in constant danger. Orochimaru could be using Naruto as a pawn for his own goals, like taking over Naruto's body. Also, the power Naruto gets might be unstable or come with a price, like draining his life force over time.
In some Orochimaru lemon fanfic, he might be portrayed as having a more seductive or alluring side. However, this is a very unorthodox view compared to his original character in the Naruto series. His intelligence and cunning nature might still be emphasized, but in a more sexually charged context which is not really in line with the official Naruto story.
It would likely become more complicated. Sasuke has his own history with Orochimaru. If Naruto goes to Orochimaru for power, Sasuke might see Naruto as a rival in a different way. He could be jealous that Naruto is getting power from Orochimaru, or he could be angry that Naruto is making the same 'bad' choice he once did.
Well, Naruto's character might become more morally ambiguous at first. Since Orochimaru is a rather shady character, Naruto could start to question some of his previous beliefs. He might become more power - hungry, but also more self - reliant in a way as he tries to master the new power. However, he could also struggle with the darker aspects of Orochimaru's power, like having to use some underhanded tactics.
I recommend "Naruto: Murder of the Blood" and "Naruto: The Beginning of the Awakening of the Corpse Vein." Both of these novels are Doujinshi novels with Orochimaru as the main character. In "Naruto: Murder of the Blood", the main character walks through the Ninja Realm as Hiroto Norikazu, causing the entire Ninja Realm to tremble and tremble. The protagonist in "Awakening the Corpse Vein at the Beginning" had the ability to devour blood and chakras to obtain other people's abilities, talents, and memories. He grew from a small assistant under Orochimaru to a shadow that controlled Ninja Realm. Both novels are very interesting. You can read them. I hope you like this fairy's recommendation. Muah ~😗
Well, the curse mark could potentially enhance Naruto's power in some ways. It might give him access to new forms of chakra or abilities. However, it also comes with risks as it has Orochimaru's influence. Naruto may initially struggle to control it, but as he grows stronger, he could learn to harness its power for good. Maybe it gives him a boost in combat situations, making his attacks more powerful and his movements faster.
In some fanfictions, Orochimaru might develop a sense of loyalty towards Naruto. After being around Naruto for a while, he could see Naruto as someone worthy of his loyalty. This could lead to him being more open to working with the Hidden Leaf and helping Naruto in his various missions. He might even sacrifice his own interests to protect Naruto at times, which is a complete turnaround from his initial character.
Well, in some fanfictions, Orochimaru might use some forbidden jutsu. He could have combined his knowledge of resurrection techniques with some unique chakra sources. Maybe he found a way to reverse the death process by using the power of the snakes he has a connection with. For example, he could have used the regenerative abilities of the snakes' chakra to bring Naruto back to life.
In some fanfics, Naruto might use his new and powerful jutsu that he has mastered over time. Maybe he combines his Sage Mode with the power of the Nine - Tails in a unique way that Orochimaru can't counter. For example, he could use the Nine - Tails' chakra to enhance the range and power of his Sage Mode attacks, and then catch Orochimaru off - guard.
Well, in some versions, Naruto might use his new and improved Rasengan techniques. He could have combined it with his Sage Mode powers to overpower Orochimaru. Maybe he also uses his quick thinking and the element of surprise, since Orochimaru is always so full of his own schemes.