In some issei angel fanfiction, the story could revolve around Issei falling in love with an angel, which is a big taboo in their world. This love story would be filled with challenges and obstacles they have to overcome.
One interesting plotline could be Issei's struggle to control his new fallen angel powers while still maintaining his relationships with his friends at school. For example, he might accidentally use his powers in public and have to cover it up.
There could be a fanfiction where they are brought together by a mysterious prophecy. As they try to figure out their roles in the prophecy, they discover hidden secrets about each other's pasts. This exploration of their histories can create a complex and engaging story.
There are fanfictions where Issei Hyoudou travels to different dimensions. In these stories, he might encounter alternate versions of his friends and foes, which makes for really exciting plot twists. For example, he could meet a version of himself that has turned evil and has to figure out how to deal with it.
One interesting 'dragon issei fanfiction' could be where Issei discovers a hidden dragon power within himself and has to learn to control it. This could lead to him facing new and powerful enemies.
One interesting 'angel supernatural fanfiction' story could be about an angel who falls in love with a human and has to choose between his celestial duties and his new - found earthly emotions. Another might involve an angel teaming up with a group of hunters to fight against a powerful demon that threatens the balance between heaven and earth. There could also be a story where an angel loses his powers and has to learn to survive in the human world relying solely on his wits.
One interesting Buffy and Angel fanfiction could be one where they team up against a new, more powerful demon that wasn't in the original series. It might explore their relationship in a different way, like how they have to rely on each other more than ever.
There are fanfictions that rewrite certain plot points in the Angel Sanctuary universe. Maybe a story where the different factions of angels and demons interact in a more peaceful way than in the original. This could lead to new alliances and romances between characters that were previously enemies.
One interesting pet angel fanfiction could be about a cat who is actually an angel in disguise. It uses its angelic powers to protect its owner from harm in a magical world filled with various creatures.
Some fanfictions may center around the angel's love life. They could fall in love with another supernatural being or even a human. For example, a story where the angel has to choose between their duty as an angel and their love for a mortal, creating a heart - wrenching and exciting plot.
One interesting angel oc fanfiction could be about an angel OC who descends to Earth to learn about human emotions. They interact with various humans and have to navigate through the complex web of human relationships while also hiding their true identity as an angel.