Well, it could be really exciting. The OC might find themselves in the middle of all the action and drama in the RWBY world. They could form unique relationships with the different characters. Maybe they'd team up with Ruby and her friends against the Grimm. And in the harem aspect, they could have some interesting romantic or friendly interactions with multiple characters, like Weiss, Blake, and Yang.
The OC might interact with them in various ways. They could start by being in awe of their combat skills, like Ruby's speed. And in the harem aspect, they could show affection differently to each character. For Weiss, it could be through respecting her family name and helping her with her studies. With Blake, they might bond over books and their love for knowledge.
They can start by observing the new world's culture. Just like when we travel to a new place in our world, the OC can watch how the people interact, what their values are. For example, if the new world values honor above all else, the OC can try to uphold that in their actions.
One interesting concept could be the unique character interactions. In a harem - style fanfiction set in the RWBY world, the original characters (OCs) might have different dynamics with the RWBY cast. For example, an OC with a special power could form various relationships, like a friendship - turned - romance with a particular RWBY character.
First, know the RWBY world well. Understand the rules, the powers, and the personalities of the existing characters. This will help you integrate your OC smoothly. Second, develop your OC with a clear backstory and motivation. A well - thought - out OC will be more engaging in the harem scenario. For example, if your OC has a tragic past, it can add depth to their relationships in the harem.
A prevalent theme is the discovery of self - identity. The OC, while in the middle of a harem situation, also has to figure out who they are in this new world of Remnant. They might have to deal with their past, their new - found powers, and how they fit into the RWBY universe. And of course, the theme of love and romance is central, with different ways of showing affection and dealing with the complexity of having multiple romantic interests.
The OC can be developed by giving him a unique backstory. For example, he could have had a difficult childhood in his own world which led to his love for gaming as an escape. In the RWBY world, this backstory can influence how he reacts to different situations. His skills in gaming can also be further developed, like he starts with basic knowledge but as he faces more challenges in the RWBY world, he learns to adapt and combine his gaming skills with the combat and magic in that world. His relationships with the harem members can also shape his character, as he learns to be more empathetic and responsible towards them.
One interesting concept could be the reincarnation aspect. It allows for the OC (Original Character) to have a new start in the RWBY universe, perhaps with knowledge from their past life that gives them an edge. Another concept might be the harem part, which could lead to various relationship dynamics and character interactions within the story.
One great RWBY OC harem fanfiction is 'A New Beginning in Remnant'. It has an interesting OC who interacts well with the main RWBY characters in a harem - like setting. The story has good character development and some exciting plot twists.
One idea could be that the OC discovers they have a special power in the new world that is key to saving it from an ancient evil. For example, the power to control time, which is a very cool concept.