It could be that she has different expectations for Gohan's future now. After seeing how powerful he is, she might be worried about him being constantly involved in battles and is frustrated, which leads to her abusing him in the fanfic.
In the fanfic, it might be that she feels a bit jealous of the attention Gohan gets for his heroics in the Cell Games. She wants Gohan to focus more on normal life like studying, and her frustration turns into abuse.
He could be very sad and withdrawn. After all, he expected love and support from his mother, not abuse. So he might start to isolate himself from her in the fanfic.
Well, the story could take a very different turn. Gohan was a symbol of hope for a new generation of fighters. His death would shatter that hope. The remaining Z - Fighters would have to reevaluate their strategies and training methods. Maybe they would start to focus more on group attacks rather than relying on individual powerhouses like Gohan. And the fanfiction could explore how the other characters grow and change in the face of this great loss. They might also seek new allies or ways to resurrect Gohan, which could lead to all kinds of new adventures and challenges.
One plot could be that Gohan decides to help Chichi with her garden. They start by planning what to plant. As they work together, they accidentally get some mud on their faces and start laughing. They plant all kinds of vegetables and flowers. In the middle of it, Gohan remembers some stories his father told him about gardening. He shares these with Chichi, and she listens intently. By the end of the day, they look at the newly planted garden with pride and a sense of accomplishment, and their bond grows stronger.
One possibility in the 'Gohan Trains After Cell Games' fanfiction is that Gohan is training not just for physical strength but also for mental strength. He has seen the horrors of the Cell Games and realizes that a strong mind is as important as a strong body. So he might be doing meditation - like training, learning to control his emotions better in battle. He could also be training to sense ki more effectively, which would give him an edge in combat against stronger opponents in the future.
One possible interesting plot could be Gohan unlocking a new, unexpected power level during the Cell Games. For example, instead of just going Super Saiyan 2, he could access a form that combines the power of both Goku and his own latent abilities. This new form could have unique characteristics like different colored ki blasts or enhanced speed and strength that not only surprises Cell but also gives Gohan a whole new perspective on his power.
Well, one possibility is that Gohan might go into a period of self - discovery. After such a huge battle, he's likely to question his role in the world. Maybe he'll travel to find other powerful fighters and train with them. Another thing could be that he'll try to live a normal life for a while, like going back to school, but find it difficult because of his new - found power and the memories of the Cell Games.
Maybe Chi - chi is constantly comparing Gohan to Goku in the fanfiction. Gohan has his own identity and abilities, and being compared all the time can be frustrating. He could get mad because he wants to be recognized for who he is, not just as Goku's son. Also, if Chi - chi is interfering too much in his training or friendships, that could also lead to his anger.
A theme that might emerge is the struggle between safety and heroism. Gohan has the potential to be a great hero, but Chi - Chi's protection often keeps him in a more 'safe' zone. This creates a tension where Gohan has to decide whether to follow his mother's wishes for safety or pursue his heroic instincts. This theme can add depth to the story and explore the characters' personalities more thoroughly.
Perhaps a rogue Saiyan from another part of the universe. This Saiyan has heard about the Super Saiyan powers on Earth and wants to prove his superiority. He shows up at the Cell Games and challenges Goku and Gohan. He has a different fighting style, more brutal and less honorable than the Saiyans on Earth. His presence adds a new layer of conflict as Goku and Gohan have to decide whether to fight him on his terms or uphold their own values.
He could meet an old master from the past who has some unique training methods. This master might teach Gohan some long - forgotten Saiyan techniques.