Well, it could start with Athena making a decision that Percy believes will lead to the destruction of Camp Half - Blood and all the demigods. Maybe she's under the influence of an ancient evil. Percy tries to reason with her, but she won't listen. So, he has to consider killing her to protect his friends and home. Along the way, he faces opposition from other demigods who still believe in Athena's goodness. Percy then has to find a way to prove that Athena is a threat, all while dealing with his own feelings of guilt and betrayal for even thinking about killing a goddess he once respected. It would be a story filled with drama, action, and moral quandaries.
One possible plot could be that Percy has been corrupted in some way, perhaps by a powerful and evil force. Athena, seeing him as a threat to the safety of the demigod world and the order she represents, decides to take matters into her own hands and kill him. This could lead to a lot of conflict among the other characters, some who might believe Percy could have been saved and others who support Athena's decision.
The plot could start with Athena seeing something special in Percy that she hasn't noticed before. Maybe he does something heroic that makes her look at him in a different light. As she starts to interact with him more, feelings develop, and they end up kissing. But then, they have to face the consequences. The other gods might be outraged or confused, and Percy's friends might not understand. It could lead to a journey of self - discovery for both of them as they try to navigate this new relationship in a world full of rules and expectations.
One possible plot could be that Athena is giving Percy some strategic advice for an upcoming battle. Maybe she's warning him about a new type of monster he'll face and how to defeat it using his wits.
Perhaps the hunters have a mission that goes against Percy's beliefs or values. They might be trying to harm an innocent creature that Percy is sworn to protect. So, he decides to stop them by any means necessary, which unfortunately leads to killing some of them. It could also be a misunderstanding, where the hunters' actions are misinterpreted by Percy, leading to a tragic outcome.
Well, perhaps in this fanfiction, the Athena Cabin is facing a threat that only Percy can help with. As Percy spends more time there, he starts to develop feelings for a particular camper. The 'lemon' part could be that they share some secret, intimate moments in the quiet corners of the cabin. And along the way, they also have to deal with the other campers' reactions and the overall politics within the cabin, which is full of intelligent and opinionated demigods.
Well, one possibility is that Percy would gain a whole new set of strategic skills. Since Athena is the goddess of wisdom, she might teach Percy how to outwit his enemies in more complex ways. For example, instead of just relying on his sword fighting skills, he could learn to anticipate his opponents' moves based on their past behaviors and psychological patterns. Also, Athena could introduce Percy to ancient battle tactics that were used by the greatest Greek heroes. This would make Percy a more well - rounded fighter and hero, able to handle different types of challenges that he may face in his adventures.
Well, one possible plot could be that Percy somehow proves himself worthy of Athena's hand. Maybe he solves a great mystery that threatens both the mortal and godly worlds, and in the process, he and Athena develop a deep connection. Their marriage could then be a way to unite the demigods and the gods more closely, leading to a new era of cooperation.
Well, it's not something you see all the time. Fanfictions usually follow the general vibe of the original series where Percy is more of a hero, not a god - killer, especially not of Athena. That being said, in the realm of fanfiction, anything can happen. Maybe in a really dark or AU (alternate universe) fic, a writer could come up with a scenario where Percy has to kill Athena for some extreme reason, like to save the world from a greater threat that Athena has unknowingly become part of. But again, it's not a common thing.
Perhaps in the fanfiction, Nico has been tricked by an enemy. This enemy convinces Nico that Percy is a threat to their world. So, Nico decides to take matters into his own hands. Another possibility is that Nico's own internal demons, related to his past traumas and his complex relationship with the gods, drive him to see Percy as an obstacle that needs to be removed.
There might be such fanfictions out there. You could start by looking on popular fanfiction websites like Archive of Our Own (AO3) or Fanfiction.net. However, the idea of Athena killing Percy is quite dark and might not be very common. You'll need to use the search functions on these sites and try different combinations of words related to 'Athena', 'Percy', and 'killing' to see if you can find any relevant stories.