Well, in such a fanfic, perhaps Sakura could gain new powers. With the seal breaking, she might be able to access a hidden reservoir of chakra. This could lead to her being more formidable in battle and changing the power dynamics within the Sasusaku relationship.
One interesting aspect could be the origin of the seal. In the fanfic, as the seal breaks, the backstory behind it might be revealed. It could be related to some ancient clan's secret or a powerful jutsu gone wrong in the past. This revelation would add depth to the plot and might also bring new allies or enemies into Sakura's life.
Obviously, Sasuke would be affected. Since it's a Sasusaku - related fanfic, any change in Sakura would impact their relationship. He might have to adjust to a more powerful Sakura, or he could be worried about the consequences of the seal breaking.
The breaking of Sakura's seal in the fanfic could be the start of an epic adventure. She might have to go on a journey to find a way to control the new power or to reseal whatever was released. Along the way, she could meet new characters, both good and bad. She may also have to face her own inner demons as the power might be changing her in ways she doesn't fully understand yet. This could be a story of self - discovery and growth for Sakura.
I'm not entirely sure as I haven't read this specific fanfic. But generally, in SasuSaku (Sasuke and Sakura from Naruto) fanfics, it could be about some new adventure that breaks Sakura's seal and how that impacts her relationship with Sasuke and the overall story world.
In the fanfiction, Naruto breaking the seal might also lead to him unlocking memories or abilities related to his family or the Uzumaki clan. He could discover secrets about his parents or ancestors that were sealed away. This could give him a better understanding of his heritage and purpose. It might also lead to him having new allies or enemies within the clan or among those who knew about the secrets of the seal.
Based on the title, the main characters are likely to be Sasuke and Sakura. Since it's a SasuSaku fanfic, they are usually the central focus.
Well, one possibility could be that it's a dark fanfic where an enemy of Sakura kidnaps her to get to Sasuke. Maybe they want to use her as bait to lure Sasuke into a trap. Since Sasusaku is a popular pairing, the kidnapper might think that Sasuke would do anything to save Sakura.
Well, I think Hinata would also be there to support Naruto. She's always been by his side and her Byakugan might be useful in detecting any strange changes in Naruto's body or chakra after breaking the seal. Also, Tsunade could play a role. As the Hokage, she has resources and knowledge. She could provide Naruto with protection if there are enemies targeting him because of the broken seal and also offer advice on how to handle the situation.
One possible plot could be that Sakura discovers Naruto has been hiding his true emotions or identity behind a metaphorical mask. She might break it by having a deep and honest conversation with him, forcing him to confront his real self. For example, Naruto has always shown a tough exterior but Sakura realizes he's actually very vulnerable inside.
It could be Orochimaru. He's always been interested in Sasuke and might see kidnapping Sakura as a way to manipulate Sasuke. He could use Sakura as a guinea pig for his experiments or as a bargaining chip to get Sasuke to come to him.
A fanfic could show Sakura sacrificing herself to save Sasuke. This would be a very emotional and heroic end for her. Sasuke would then have to live with the guilt and the memory of her selfless act.