One idea could be to focus on the male OC's unique kagune. Maybe it has a special ability that sets him apart from other ghouls in the Tokyo Ghoul universe. For example, it could be a kagune that can change its shape based on the situation, like becoming a shield in combat or a tool for climbing buildings quickly. Another aspect could be his backstory. He could be a half - ghoul, half - human, which would bring a whole new set of internal and external conflicts. He might struggle with his identity, not fully belonging to either the ghoul or human world. This could lead to interesting interactions with both ghouls and humans. Also, consider his relationships. He could have a mentor, perhaps an older ghoul who teaches him the ways of survival in the harsh ghoul society, or he could form an unlikely friendship with a human who doesn't know his true nature at first.
A good Tokyo Ghoul male OC fanfic can be built around his powers. Let's say he has the ability to manipulate the RC cells in other ghouls. This would make him both feared and sought after. He could be a loner by choice, living on the fringes of both ghoul and human society. His motivation could be to uncover the secrets of the ghoul world, especially about the origin of their powers. As he delves deeper into this mystery, he gets involved in a power struggle between different ghoul factions. Each faction wants to use his power for their own gain. He has to navigate through this web of politics while also trying to stay true to his own beliefs of not harming innocent humans.
Another aspect could be his relationships. He might have a complicated friendship with a human who is aware of his ghoul nature. This relationship could be full of tension, as they both try to navigate the dangerous world where ghouls and humans are at odds.
An engaging plot for a Tokyo Ghoul OC Washuu fanfic can be created in several ways. Firstly, think about the character arc of the OC. They should start from a certain point, like being a naive outsider in the Washuu's world, and then grow and change throughout the story. Incorporate the Washuu's lore. Maybe there's a long - lost prophecy about the OC and the Washuu that gradually unfolds. Also, use the setting effectively. The dark alleys and dangerous areas in the Tokyo Ghoul world can be the backdrop for many tense scenes. The relationships between the OC and other characters, especially the Washuu, should be complex and full of emotions. For example, a love - hate relationship can add a lot of depth to the plot.
One idea could be to explore the backstory of Rize's brother. Maybe he was involved in some secret ghoul society before Rize became known. You could start with a scene where he is on a mission for this society, which then ties into how Rize's life is affected.
One idea could be to create a male OC who has a unique power related to technology, like the ability to manipulate digital code. He could join the Big Hero 6 team and have some initial clashes with the existing members due to his different approach. For example, he might be more impulsive while the others are more cautious.
One idea could be to create a male OC who has the power of light manipulation. He could be a new guardian in training, learning from the existing guardians like Jack Frost and North. His backstory could involve being an orphan who discovers his powers during a time of great darkness in his world. This would add depth to his character as he battles his own insecurities while also trying to prove himself worthy of being a guardian.
One plot idea could be your OC being a new ghoul trying to find their place in the ghoul society. They might start at the bottom, having to learn the rules of the different ghoul groups and facing discrimination from more established ghouls. Another idea is that your OC discovers a secret about their transformation that no one else knows, like it was part of a secret experiment by the CCG. They then have to figure out what to do with this knowledge while also avoiding being caught by the CCG.
Another concept is a crossover of the powers. In the fanfic, Weiss could have some sort of ice - based kagune, which combines her Schnee family glyph powers with the unique abilities of a Tokyo Ghoul. Blake could use her shadow powers in a way that is similar to how ghouls move in the shadows, making her a more stealthy fighter in the Tokyo Ghoul setting.
You could create an OC who is a ghoul investigator from a foreign country. This OC would bring different techniques and perspectives to the fight against ghouls. They might also face discrimination or misunderstanding within the Tokyo Ghoul universe due to being an outsider. For example, they could have a special weapon or training method that the local investigators haven't seen before.
One common theme is the struggle for identity. OCs often have to figure out where they stand in the world of ghouls and humans. For example, they might be half - ghoul and have to decide which side to embrace.
One idea could be a fanfic where a human character tries to form a peaceful co - existence pact with the ghouls. They might start by secretly helping a friendly ghoul and gradually work towards getting both sides to understand each other better.