I'm not sure specifically as I haven't read it. But generally, it could be about a final goodbye or farewell (the 'last aloha') in a Hawaiian - inspired setting, perhaps involving characters' relationships, cultural elements, and personal growth stories.
One interesting aloha pokemon fanfic could be about a trainer's journey in the Alola region with a Pikachu that has unique abilities. Maybe it can communicate telepathically with other pokemon, which gives the trainer an edge in battles.
You can start by looking on fanfiction websites like FanFiction.net or Archive of Our Own. These platforms have a large collection of fan - made stories, including aloha pokemon fanfic. Just use the search bar and type in relevant keywords like 'aloha pokemon' to find what you're looking for.
I'm sorry, I don't have specific information about 'aloha ni deogracias rosario'. It could be a very personal or a relatively unknown story. Maybe it's about a person named Deogracias Rosario and 'aloha' might be related to a place or a greeting in their story.