Plot Idea: Lights in the Dark (Fantasy/Romance)

Radia is a floating kingdom of mages, as humans dislike being around mages and mages like to be alone. However, even among mages there are some magic practices looked down upon. Even if these mages where born with dark magic and can't help but to use it. A necromancer is one of the mage outcasts because of their affinity of the dead. They can't leave, however, because the island floats in the sky to protect mages from the humans that hate them. Despite this, they are very caring and want only to help others.

One day, however, the necromancer is at the edge of the island on commission work to reanimate a dead pet (one of the very few jobs they get) and notice what seems to be a light magic mage at the edge of the kingdom. In horror and shock, the necromancer watched as the light mage falls down to the human realm. Due to their kind nature, they go down to the human realm to save them, only to learn that because of the fall the light mage has lost their memory, and now they are stuck because the necromancer doesn't have the magic to take them back up. The pairs' only hope is to help the light mage get their memories back so they can help them return home. Along the way, however, they become far closer than what they could have imagined.

Notes:
-Mages can be any gender
-I want this to be more of a slow burn