A possible plot is that Android 21, who has some glitches in her system related to her emotions, is healed by Gohan's kindness. As a result, she starts to develop feelings for him. They then have to deal with the fact that their relationship is not accepted by some in the Z - Fighter community because of Android 21's origin. This leads to a story full of drama and self - discovery for both of them.
In a fanfiction plot, Android 21 could be in a situation where she has lost her memory. Gohan finds her and decides to help her regain her memories. Along the process, they get closer and closer. Gohan teaches her about the world, and she in turn shows him new ways to use his power. Their relationship evolves from a simple helping - hand situation to something deeper and more romantic.
Maybe in the fanfiction, Android 18 gets injured while protecting Gohan from a new powerful enemy. Gohan then takes care of her and in that time of vulnerability, they realize their feelings for each other. This could lead to them exploring a relationship while also trying to figure out how to defeat the enemy that still lurks.
One interesting story could be about Gohan and Android 18 teaming up to fight a new powerful enemy. They combine their unique skills, Gohan's martial arts and Android 18's android strength, to overcome the foe.
In some fanfictions, a possible plot is that Android 21 discovers a way to transfer some of Goku Black's power into herself, creating a new form for her. This form has a mix of her android features and Goku Black's dark energy, leading to a whole new set of adventures as she tries to control this power.
One idea could be a story where Gohan and Android 18 team up to protect the Earth from a new, powerful threat. They start off as reluctant allies but gradually develop a deep respect for each other's abilities. Another plot could be a time - travel story where they go back in time and have to prevent an event that changes their future relationship. Maybe they end up having to work together to stop a younger version of Cell from evolving further.
One possible storyline could be them teaming up for a tournament. Gohan's martial arts skills combined with 18's strength would make for an interesting duo in the fighting arena. They could face various opponents and learn to trust each other's abilities more.
The contrast between them makes them an interesting couple. Gohan is a half - Saiyan with a gentle nature most of the time, while Android 18 is a tough and powerful android. This contrast in their personalities can create a lot of interesting dynamics. For example, in a relationship, Gohan might be the more emotional and sensitive one, while Android 18 would be the practical and strong - willed partner.
Maybe there's a prophecy or something that says Gohan is the only one who can conquer Android 18. So he is pressured by the world around him to do it. But as he gets closer to achieving this goal, he realizes that there's more to Android 18 than just being an enemy to be conquered. He might start to see her as a complex being with her own motives and feelings, which could change the whole direction of the story.
One interesting plot could be the reincarnated character using Gohan's latent power in unique ways. For example, they might quickly master new forms like Super Saiyan 2 and use it to protect the Earth from threats that were previously not faced in the original story. Another plot could involve the character's modern - day knowledge affecting how Gohan interacts with other characters. They could introduce new training techniques or ways of thinking to the Z - fighters.
A really cool plot could be that Gohan and Naruto get transported to an alternate dimension where they have to find a way back home. Along the way, they meet different versions of their friends and foes, and they have to work together to overcome the challenges of this strange new world. They might also discover some secrets about their own powers and the nature of their universes in the process.
One possible plot could be Gohan training the female androids. He might discover that they have hidden potential not just for combat but also for good. For example, they could start to show emotions and a sense of morality, and Gohan helps them explore these new aspects of themselves.