Another possibility is that the main antagonist is a Trojan traitor. This person is secretly working with the Greeks. They try to sabotage Achilles' efforts from within the city. They might steal his weapons, spread dissent among the Trojan soldiers about Achilles' motives, and try to open the city gates at a crucial moment to let the Greeks in, all while pretending to be on Troy's side.
The main antagonist could be Agamemnon. In the original story, he and Achilles had a lot of conflict. In this fanfiction, if Achilles is fighting for Troy, Agamemnon would still be leading the Greek forces against him. His thirst for power and glory would make him a formidable foe, constantly devising strategies to defeat Achilles and take Troy.
Perhaps in this fanfiction, Achilles discovers a prophecy that if Troy falls, it will lead to the destruction of his own homeland in a different way. So, he fights for Troy not just as a hired warrior but as someone with a vested interest in the city's survival. He uses his incredible combat skills to fend off the Greek invaders, and along the way, he forms unexpected alliances with some of the Trojan soldiers who were initially skeptical of him.
It could be a time - traveling sorcerer who wants to change history for his own evil purposes and sees Achilles as a threat. The sorcerer might try to stop Achilles from getting back to his own time or use his knowledge of the future to his advantage against Achilles.
It could be a rogue ninja who created the zombie plague on purpose. Maybe they wanted to take over Konoha or the whole ninja world by using the zombies as an army.
It could be a new dark wizard who is more powerful and cunning than Voldemort. This wizard might have been in hiding all this time, biding his time to take over the wizarding world. With Harry being alone, he would pose a great threat as Harry doesn't have his friends to support him in this fight.
The plot could center around the growing attraction between Achilles and Briseis. For instance, it might start with Briseis being initially resistant to Achilles due to his reputation as a fearsome warrior. But as time passes, she begins to see his more tender side. Their relationship could be further complicated by the political situation in Troy, with both of them caught in the middle of the war.
Achilles was the commander of the Greek coalition army in " Troy." He was brave and good at fighting, and he had a sense of responsibility and honor. In the film, he developed feelings for Briseis, the priestess of the Temple of Apollo in Troy. Briseis was a woman who believed in the gods. She was not afraid of Achilles, and because of his identity as a killer, she denounced his cold-bloodedness and cruelty. However, because of this difference, Achilles began to respect her and gradually fell in love with her. During the siege, Achilles anxiously searched for Briseis, hoping to save her from the fire and water. Hurry up and click on the link below to return to the super classic " Lord of the Mysteries "!
It could be an old enemy of the gods who sees Percy as a threat because of the Curse of Achilles. Maybe a Titan who escaped from Tartarus and wants to use Percy's power for their own gain. If they can control Percy, they could have a powerful weapon against the gods.
Maybe an ancient evil ninja who was sealed away long ago but has now been released. This antagonist could have powers that nullify any communication or summoning jutsu, forcing Naruto to fight alone. He would be extremely powerful and know many forgotten and deadly jutsu.
It could be a vengeful god who was slighted during the Trojan War. This god might see the Troy descendant as a symbol of the past they want to destroy. Also, Percy's existence as a demigod could be a threat to their plans. Helen, with her beauty and the power it holds, could be a target too. The god could use their powers to create all sorts of disasters and try to turn the trio against each other.
A lemon in fanfiction often implies some sort of romantic or sexual undertone. In the context of Troy, Briseis and Achilles, the fanfiction might explore their complex relationships. It could delve into the unspoken desires and tensions between them. For example, it might show how Achilles' feelings for Briseis were not just based on her beauty but also on her strength of character. And Briseis' view of Achilles could be a mix of fear, admiration and a strange attraction.