First, consider the role the OC will play. If it's a partner for Genos, think about their combat abilities. For example, if Genos is mainly a physical fighter, the OC could be a support with long - range attacks or healing powers.
How about Alucard from Hellsing? He is an extremely powerful immortal. In a crossover with Genos, Alucard's centuries - old experiences and his complex relationship with humanity could play off well against Genos' more recent creation as a cyborg. They might start off as adversaries, but then find common ground in their fight against a greater evil. Genos could learn a lot about the nature of immortality from Alucard, who has seen so much over the years.
The following are some recommendations from ancient novels about disciples being beaten:
1. Palace of Ecstasy: The master-disciple relationship in this novel is full of fun and interaction. The plot is compact and the writing is smooth.
2. [Green Dragon Totem]: In the story, the master fell deeply in love with his disciple. It tells the story of their friendship being attacked and gradually turning into love.
3. In this ancient Xianxia novel, the disciple asked the master for forgiveness and was beaten up. The plot was fascinating.
Please note that the novels recommended above may only be part of the relevant results. There may be other novels that are suitable for your disciple.
To write a Genos crossover fanfiction, think about the differences and similarities between Genos' world and the other universe. For example, if it's a crossover with a magical world, how will Genos' technology interact with magic? Develop your characters well, not just Genos but also the characters from the other universe. Make sure their interactions are believable. You can also add some humor or drama to make the story more engaging. Maybe Genos tries to learn magic but keeps failing in a comical way. This can add a light - hearted touch to the story.
Female Genos could be developed with a more empathetic side. Since she is a cyborg, she could struggle with understanding human emotions more deeply. Maybe she starts to learn about love and friendship in a different way compared to male Genos. For example, she might be more sensitive to the feelings of other female characters around her.