Dumbledore could be a character to focus on in this type of fanfiction. He played a role in the Marauders' lives at Hogwarts. In the afterlife, he could be a guide or a source of wisdom for them. He might have knowledge about the afterlife that they don't, and he could help them come to terms with their past actions, good and bad. His own mysterious past and actions could also be intertwined with the Marauders' stories in the afterlife, adding more depth to the narrative.
A possible plot for Marauders Afterlife fanfiction is that they are in a sort of limbo where they can observe the lives of their loved ones. James could watch over Harry and try to influence him in small ways. Remus might find a way to comfort Tonks from the afterlife. And they could all be working towards a way to return to the living world for a short time to give important messages or help in a great battle that's about to happen in the wizarding world.
One possibility is that in the afterlife, Snape finally finds peace. He no longer has to hide his true loyalties or endure the scorn of those who misjudged him. He might be reunited with Lily, and they could have the conversations they never had in life. He could also meet with Dumbledore again, and they could discuss all the secrets and sacrifices that were made during the war.
Yes, they might. Fanfiction can be a great source of entertainment and alternative storylines. Marauders, being characters full of curiosity, could potentially be interested in exploring different takes on their own adventures or the wizarding world in general through fanfiction.
If he meets Lily in the afterlife, their relationship could become more of a true friendship. Without the complications of James Potter and the war, they could finally understand each other on a deeper level. Snape could let go of his unrequited love and instead cherish the bond of friendship that was always there beneath the surface.
They are likely to be horrified. James, for example, would probably be extremely angry that his friend had to endure such a thing. He might immediately vow to protect Sirius from any further harm. Remus, being more empathetic, would be there to comfort Sirius and offer his support in a more quiet and understanding way. Peter, though not as strong - willed as the others, would still be shocked and follow the lead of James and Remus in trying to make Sirius feel better.
There was no afterlife for Luo Mei. Luo Zhaoyan did not know that he had sacrificed his entire clan in Praying for the Present. Ro Maiming voluntarily walked up to the altar, thinking that he had become a hero. However, he did not die, but became a remnant soul that lived in the world. He could not be seen or touched, and was very lonely. In the Legend of the Sword and Fairy 6, Luo Maiming knew that he had no afterlife, so he gave the key to the Hot Sea to Luo Zhaoyan and expressed his wish to go with her to see the scenery that she had painted, but it was impossible. Therefore, according to the information provided, there was no afterlife for Luo Maiming.
One great female marauders fanfiction is 'The Marauders' Era: A Girl's Perspective'. It offers a unique take on the Marauders' time at Hogwarts from a female character's point of view. The character development is well - done and it weaves in interesting plotlines related to the original Marauders' story.
The interactions might start with a lot of questions. Fred would be curious about the Marauders' time, and they would be interested in his more recent Hogwarts experiences. For example, Fred could ask about how they managed to create the Marauder's Map, and the Marauders could ask about the Weasley twins' joke shop ideas.