The Flash might initially be in denial. He's used to Batman always having a plan and his death would be a huge shock. He would then turn his speed into a tool for investigation, trying to find out exactly what happened. Green Lantern could feel a sense of loss but also be spurred into action, using his ring to try and prevent future tragedies like Batman's death. He might create constructs in Batman's memory to inspire the team.
In this fanfiction, Robin could be saving the Justice League from a threat that they didn't see coming. For example, a mind - controlling parasite that has infected some of the members. Robin, being the smart and resourceful character he is, figures out a way to neutralize the parasite. He might have to go through a series of challenges, like sneaking into a heavily guarded enemy base, decrypting complex codes to find the antidote, and then distributing it to the affected League members.
In a 'Justice League meets Robin' fanfiction, Robin could show off his amazing acrobatic skills to the Justice League members. They might be impressed and start to see his potential as a valuable addition to their team. Maybe Robin would help Batman communicate better with the other League members, as he often understands Batman's thinking.
It could be a new villain who has a grudge against the Justice League. Maybe someone whose family was affected by the League's actions in the past. This villain would be very smart and powerful, creating elaborate traps for the League members.
In a 'Justice League meets Robin' fanfiction, Robin is definitely one of the main characters. He is the link between the dark world of Gotham and the grandeur of the Justice League. The members of the Justice League are also main characters. Batman is an important one as he is Robin's mentor. Superman, with his incredible strength, will be there. Wonder Woman, with her grace and power, would be involved. Flash, known for his speed, Aquaman ruling the seas, and Green Lantern with his power ring - all these characters will interact with Robin and shape the story.
The Riddler could be a great antagonist. He might have a grand scheme that not only affects Gotham but also has implications for the Justice League's interests. His riddles could stump both Robin and the League members, forcing them to work together to decipher his plans.
Well, it could be that baby Robin's presence brings out a softer side of the Justice League. They might start doing more community - based activities suitable for a baby, like visiting orphanages or hosting baby - friendly events. And baby Robin could be the little mascot that unites them even more. Maybe he'd have some cute interactions with the Flash, like trying to catch his lightning - like speed.
In some fanfictions, Baby Robin forms an unexpected bond with a less - popular member of the Justice League, like Aquaman. They go on a small adventure together, away from the main group. Aquaman teaches Baby Robin about the underwater world and its secrets, which helps Robin in a later, more dangerous mission.
In this fanfiction, Robin is the central figure who is about to meet the Justice League. The League members such as Superman, who has super strength and can fly, will be important. Wonder Woman with her combat skills and magical weapons is sure to be there. Flash, the super - fast hero, will also play a role. Batman, as Robin's mentor, might have a special role too. Maybe he's the one who arranges for Robin to meet the League or he's there to keep an eye on Robin during the encounter. Aquaman could also be included if the story has an underwater or coastal - related plot. All these characters together with Robin will drive the story forward.