The removal of the curse mark might also change Anko's personality a bit. Since the curse mark was probably causing her some mental and emotional stress, without it, she could be more positive and open. This could lead to new friendships and alliances within the story. For example, she might start to get along better with some of the other Konoha ninjas who she had a bit of a distance from before because of the curse mark.
In a fanfic scenario, Naruto might remove Anko's curse mark through his unique chakra. His chakra, known for its large amount and purifying properties, could potentially counteract the dark and corruptive nature of the curse mark. He might use a new jutsu he developed or a power-up that he gained during his training.
Maybe Naruto discovers a hidden jutsu. This jutsu could be something that was lost or forgotten in the ninja world. He stumbles upon it during his adventures or training. Once he masters this jutsu, he realizes it has the power to remove curse marks. He then decides to use it on Anko to free her from the burden of the curse mark that has been plaguing her.
Anko's character might experience a shift in her personality. She could become more outgoing and less guarded. The curse mark was like a dark cloud over her, and now that it's gone, she can be more open. She might also start to mentor others, sharing her experiences of having a curse mark and how she overcame it (even if Naruto was the one who actually removed it), thus becoming a more positive influence in the ninja community.
Naruto's relationship with Sasuke could be really affected. Sasuke, having his own experiences with dark powers, might see Naruto in a new light. They could either become more competitive as they both struggle with different forms of dark power, or they could bond over their shared experiences of having something that sets them apart from others.
One possible consequence is that Naruto might face internal struggles. The curse mark has Orochimaru's taint, so Naruto could battle with the dark influence it brings. He might also face distrust from some in the village who fear he'll turn bad because of it.
In fanfiction, Naruto might remove the curse seal through intense training. He could focus his chakra in a new way to counteract the dark energy of the curse seal. For example, he might use Sage Mode training to purify his chakra system and gradually force out the curse seal's influence.
One consequence could be that the Death Eaters no longer sense his connection to Voldemort. This gives Harry an advantage in his fight against them as they can't track him through the Mark.
Another theme is identity. Characters with the curse mark may feel different from others, and the fanfic often explores how they come to terms with this new part of themselves. For example, they might question if they are still the same person they were before getting the mark. It's a complex exploration of self in the context of the Naruto world.
The curse mark could make Naruto more cautious. Since it's a dangerous and unpredictable power, he might think twice before acting impulsively as he usually does. For instance, in battle, instead of rushing in head - first, he'll consider the consequences of using the curse mark's power.
Well, one possibility is that Anko would feel a great sense of relief. Naruto might discover some hidden power or ability that was being suppressed by the seal. Maybe it could lead to Anko being able to use new jutsus or have enhanced physical capabilities. It could also change her relationship with Naruto, as she might be very grateful to him for removing the seal.