What could be the possible plotlines in Vincent Phantomhive x Diederich fanfiction?

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One possible plotline could be that Vincent, with his dark past and combat skills, gets involved in Negi's magical world. Maybe he helps Negi in a battle against a powerful dark magic user.

One possible plotline could be a romantic adventure where Will and Cornelia go on a quest together. They might face various challenges that test their relationship and their individual strengths.

One possible plotline could be that Ciel is injured during a mission against a powerful enemy. His servants then have to protect him while also trying to find a way to heal his wounds. Another could be that he's injured by a betrayal within his own ranks, leading to a story of trust and revenge. Maybe he's injured in an accident that makes him re - evaluate his life and his goals in the underworld.

In some fanfiction, it could be that making love is a way for them to heal each other's emotional wounds. Vincent, with his complex past, might find solace in Catherine's love. Catherine, on the other hand, could feel more complete. After this, they could decide to be more public about their relationship within their community, which would bring both support and some resistance, but they would face it together because of the new level of connection they have achieved.

A plotline might involve Pyrrha traveling to the Naruto universe. She could end up at the Ninja Academy and start learning ninja techniques with Naruto. Their different fighting styles would create interesting interactions, and perhaps a romance could develop as they train together.

A plotline could involve the two characters coming from different worlds or backgrounds. The woodman could be from a forest realm where everything is about strength and survival, while the plantman is from a more peaceful, flower - filled land. They meet by chance, and initially, they don't get along because of their differences. But as they are forced to work together to solve a common problem, like a dark force threatening both of their lands, they start to understand and care for each other, and a romantic relationship blossoms between them.

One possible plotline could be them going on an adventure together, facing some common enemy and growing closer in the process.

A more complex plot could involve time - travel or alternate universes. For example, an alternate universe where the universes of Dragon Ball and Naruto are merged. Goku and Kushina meet under these strange circumstances and have to figure out how to deal with the chaos that ensues while also exploring their new - found feelings for each other. This could involve battles against powerful villains who want to take advantage of the merged universes, and Goku and Kushina would be at the forefront of protecting their new world together.

A more romantic plotline could be that they are star - crossed lovers. There could be something that is keeping them apart, like a prophecy or a family feud. The fanfiction could then revolve around them trying to break free from these constraints and be together. They might have to fight against the odds and the opinions of others in the story.