Love conquering all is also a frequent theme. Despite the many challenges Itachi and his lover face, such as the political unrest in the ninja world or Itachi's own dark past, their love is shown as something that can overcome all these obstacles and bring them closer together in the end.
One popular 'itachi and his lover fanfic' could be 'A Love Beyond the Shadows'. It delves deep into the relationship between Itachi and his lover, exploring their shared secrets and the emotional bond that ties them together in a world filled with ninja intrigue.
Perhaps in the fanfiction, his lover was involved in something dark that Itachi couldn't tolerate. For example, she might have been collaborating with the enemies of Itachi's clan. So, to preserve the honor and safety of his clan, he made the difficult decision to kill her. It could also be that Itachi was misinformed about his lover's actions and later regretted it deeply.
The story might develop with Itachi seeking redemption in some way. He could start to perform heroic deeds to atone for what he did. Or, on the other hand, he could be hunted by those who were close to his lover. His actions could also trigger a chain of events that expose some hidden secrets in the world of the fanfiction, like secrets about his clan or the political situation in their land.
Another option could be a Muggle - born witch. Voldemort might have been intrigued by her in a different way compared to his hatred for most Muggle - borns. But as his views on pure - blood supremacy become more extreme, she can't bear to be with him any longer, and their relationship ends.
One possible scenario in such a fanfic could be that Itachi, seeing Naruto's potential and his pure heart, decides to entrust Naruto with his Sharingan. This could potentially give Naruto new abilities and a deeper understanding of the Uchiha clan's power. It might also create a unique bond between Naruto and the memory of Itachi, leading to new storylines where Naruto uses the Sharingan's powers in unexpected ways.
Maybe his lover was killed by his enemies. Voldemort, despite being a dark wizard, had deep feelings for this person. His loss could make him go on a rampage to seek revenge against those who took his lover away. He might also start to question his own actions and the path he has chosen in life.
One idea could be a fanfic where Voldemort's lover is a powerful witch who tries to redeem him. She sees the good in him that no one else does and attempts to turn him away from the dark path. They could have secret meetings in the Forbidden Forest, sharing their deepest desires and fears.
One possible plot could be that Voldemort's lover discovers his true dark nature and decides to leave him. This shatters Voldemort as he realizes he has lost the one person who saw something good in him. It could lead to a downward spiral in his character, making him even more bitter and vengeful towards the world.
Well, the plot could start with Itachi realizing that Naruto is the key to the future of Konoha and the ninja world. So, he gives Naruto his Sharingan. Naruto then has to deal with the new power. He might start having visions related to Itachi's past, which could help him understand the Uchiha - Senju conflict better. And this new knowledge could influence his decisions in future battles and political situations in the ninja world.