One plot idea could be that Miss Martian uses her telepathic abilities to understand Percy's inner turmoil about his demigod life. They meet during a battle against a common enemy, perhaps a new threat that combines magic and alien technology. Percy is initially wary of Miss Martian because of her different nature, but as they spend more time together, they start to fall for each other. Another idea is that they are brought together by a prophecy that only their combined powers can fulfill. They embark on a journey to find a powerful artifact that could save both their worlds.
Maybe there's a plot where Miss Martian is on a mission to Earth and accidentally crosses paths with Percy. Percy is intrigued by her alien abilities and she is fascinated by his demigod powers. They start training together, sharing their combat techniques. During this process, they develop feelings for each other. However, there are forces from both their worlds that oppose their relationship. They have to fight against these odds to be together, and in the end, they prove that love can transcend different species and origins.
One plot idea could be that Naruto is somehow transported to the DC universe where he meets Miss Martian. They team up to fight a common enemy, like an alien threat that is causing chaos in both their worlds. Naruto could use his ninja skills and Miss Martian her telepathy and shape - shifting abilities.
One idea could be that Peter Parker and Miss Martian team up to fight a new alien threat in New York. They use their combined powers of web - slinging and Martian abilities like shape - shifting and telepathy to outwit the enemy.
Another plot could involve Superboy getting injured and Miss Martian having to use her telepathic abilities to help him heal mentally as well as physically. This could lead to a deeper understanding between them and perhaps the start of a romantic relationship. Maybe she discovers some hidden traumas in his past that he has been suppressing.
One idea could be that Percy returns to Calypso's island in a dream. They have a long conversation about how they still have feelings for each other despite the distance and the circumstances. Calypso shows Percy a new part of the island that she has created in her loneliness, and they share a tender moment there.
One plot idea could be Percy having to team up with Hera to rescue a group of demigods who have been captured by an ancient monster. Hera, despite her usual aloofness, realizes she needs Percy's unique skills.
A possible plot is that the OC is a new recruit to the Young Justice team. Miss Martian is assigned to train the OC. At first, they don't get along because the OC is headstrong and doesn't like taking orders. But as they face various challenges together, like fighting against a powerful enemy that targets the team's weaknesses, they start to understand each other better. The OC could also have a secret past that Miss Martian helps uncover, which deepens their bond.
One idea could be Percy and his friends getting trapped in a virtual game world that's a twisted version of their own. They have to use their demigod skills to defeat the digital monsters and find a way out.
Maybe Percy is sent on a quest to Atlantis because there are rumors of a traitor among the Atlanteans who plans to side with the Titans. Percy has to navigate the complex political situation in Atlantis and figure out who the traitor is before it's too late. He also has to deal with the Atlantean magic which is different from what he's used to.
One idea could be that Percy discovers a hidden realm within the world of the Wanderer. This realm has its own set of rules and challenges that he has to navigate. Maybe he meets new demigods there who have been lost for centuries.
One idea could be Percy having to make a deal with a minor underworld god to save Annabeth from a new and strange curse that's slowly draining her life force. He has to complete a series of tasks in the underworld that test his loyalty and courage more than ever before.