Naruto could be one of his allies. Naruto has this knack for seeing the good in people and would probably be willing to give Obito a chance to redeem himself. Also, Sakura, with her skills as a medic - ninja, could be an ally. She might help heal Obito if he was injured during the war and see the potential in him to be a force for good.
A 'lemon fanfic' usually implies a fan - written story with romantic or sexual undertones. However, in the context of Itachi and Deidara from Naruto, such a combination might be quite interesting. Itachi is known for his calm and calculating nature, while Deidara is more impulsive and artistic. In a fanfic, the author might explore how these two very different personalities interact, perhaps in a relationship that is filled with tension and unexpected moments of connection. But it's important to note that such fanfics are often not part of the official canon of the Naruto series.
One possible motive could be to use Sakura as a bargaining chip. If he has some sort of plan against Naruto or the Hidden Leaf Village, Sakura, being a close comrade of Naruto, could be very useful. He might think that by restraining her, he can force Naruto to come to a certain location or make concessions.
One popular sakura and obito fanfiction is 'The Unseen Bond'. It delves into a world where Sakura discovers Obito's hidden past and tries to help him find redemption. Another great one could be 'Sakura's Encounter with Obito', which focuses on their chance meetings and how it gradually changes their relationship. And there's also 'A New Path for Sakura and Obito' that shows them working together to face challenges in the ninja world.
The sad story of Obito and Rin is a key part of the Naruto narrative. Obito was a young ninja with big dreams and a huge crush on Rin. When Rin was seemingly killed in front of him, it shattered his world. He thought that the ninja world was full of pain and betrayal. This led him to be influenced by Madara. He became one of the main antagonists, all because of his love for Rin and the unbearable pain of losing her. His journey from a hopeful young ninja to a vengeful villain is a tragic consequence of Rin's death.
Well, in a fanfiction where Naruto is trained by Deidara, Naruto's creativity in combat would probably skyrocket. Deidara is all about his explosive art, and Naruto could learn to use chakra in ways he hadn't thought of before. Maybe Naruto would start using the environment in a more explosive way during battles, like turning rocks into mini - explosives like Deidara does with his clay. Also, Naruto might have to struggle with Deidara's nihilistic attitude towards life at times, but it could also make him more empathetic towards enemies with different outlooks in the long run.
One popular 'deidara x sasori fanfic' is 'The Bond Beyond Art'. It delves deep into their unique relationship within the Akatsuki. The story shows how their different views on art gradually bring them closer. Another good one could be 'Artistic Allies', which focuses on their joint missions and how they support each other in a way that might be seen as more than just comradeship.
The plot could revolve around a high school art competition. Sakura and Deidara both enter. Sakura is very studious and prepares meticulously for the competition. Deidara, on the other hand, relies more on his natural talent and creativity. Along the way, they face various challenges. Maybe there's a bully in the art class who tries to sabotage their work. Sakura and Deidara have to work together to overcome this. In the end, whether they win or lose the competition, they learn a lot about themselves and each other.