A plot idea could be that the male boss is framed for a crime he didn't commit. The real culprits are a rival organization trying to undermine Agents of Mayhem. So, he has to go on the run while also trying to clear his name. He could enlist the help of a few trusted agents who believe in his innocence. Along the way, he discovers some secrets about the history of Agents of Mayhem that could change everything.
You could write a fanfic where the male boss has to train a new group of inexperienced agents. He's initially frustrated with their lack of skills but gradually comes to see their potential. As they go on missions together, they face a powerful new enemy that is specifically targeting the new recruits. The male boss has to use all his experience and wisdom to keep them alive and defeat the enemy.
One great aspect to explore in an Agents of Mayhem male boss fanfic could be his leadership style. Maybe he has a really tough - love approach where he pushes his agents to their limits but also deeply cares about their well - being. For example, he could be the type who gives out really difficult missions but always has a backup plan in case things go south. He might also have some cool gadgets or abilities that are unique to him, which could be a major plot point in the fanfic. Another idea could be his backstory. Was he once an ordinary agent who rose through the ranks? Or did he come from a completely different background, like a military or scientific one? This could add a lot of depth to his character in the fanfic.
A great plot for 'rwby agents of mayhem fanfiction' could be centered around a powerful relic that both the RWBY world and the Agents of Mayhem world are interested in. The two groups start off as rivals, thinking the other wants to misuse the relic, but then they realize they need to work together. Along the way, there are character - development moments for both sides, like a member of the Agents of Mayhem learning about the concept of aura from the RWBY characters and a RWBY character getting used to the high - tech gadgets of the Agents of Mayhem.
One idea could be exploring the backstories of the minor characters in more detail. For example, delving into Moxxie's childhood and how it shaped him into the imp he is today. Another could be a crossover with another similar animated series, like mixing the Helluva Boss universe with Hazbin Hotel and seeing how the characters interact. Maybe a fanfic could focus on Blitzo's relationship with his family and how it affects his work at I.M.P.
One idea could be a story where a new villain emerges who has the ability to manipulate time. The Agents of Shield and the Avengers have to work together to stop this villain before he changes history in a way that destroys the world. Another plot could involve an agent from Shield who discovers a long - lost relative who has superpowers and is being hunted by an evil organization. The agent has to protect their relative while also dealing with the implications of this newfound family member within the context of their work with Shield and the Avengers.
One plot idea could be Gabe getting caught in a time - loop situation within the framework of Agents of Shield. He keeps reliving the same day but each time he discovers new secrets about the team or their enemies. Another idea is Gabe forming an unexpected alliance with a villain from the series in order to save a fellow agent. Maybe he believes that the ends justify the means in this case. A third plot could involve Gabe having to go undercover in a dangerous organization that has ties to Shield's past, and he has to navigate through complex relationships and dangerous situations to complete his mission.
Next, create an outline. Outline the main events, the characters involved in each part, and how the story will progress. For example, if your story is about a heist mission, outline the steps of the heist, who is in charge of what, and what obstacles they might face. Don't forget to include some character development in your outline as well. Maybe one of the agents will learn an important lesson during the mission.
A really interesting plot idea could be that Lincoln starts to have visions while in containment. These visions lead him to believe that there is a greater threat approaching the Agents of Shield. He then has to convince the others, who are skeptical at first, that they need to prepare. He could use his time in containment to train himself mentally to face this new threat, and the story could show his growth from a reluctant captive to a determined hero.
Perhaps there could be a time - travel related plot. A device is accidentally activated in a S.H.I.E.L.D. lab that sends some Agents and Avengers back in time. They end up in a crucial moment in history, like during World War II. There, they meet younger versions of some of the Avengers. They have to work together without changing the timeline too much while also finding a way back to their own time.
One plot idea could be Fizz and Ozzie facing a challenge in their relationship due to external pressures in the Helluva Boss world. Maybe there are other demons who don't approve of their relationship and try to break them apart.
I think Weiss from RWBY could be really interesting to focus on. Her strict upbringing and powerful semblance would contrast well with the more chaotic nature of the Agents of Mayhem. From the Agents of Mayhem, Brick would be a good character. His brute strength and no - nonsense attitude could lead to some humorous and action - packed scenes when paired with the RWBY characters.