When one of the Pod’s regular dive missions to one of the many wrecks around the pirate coves recovers a map curled up and so well sealed into a bottle that it’s still dry, Kaminari and Sero immediately decide that they need to follow where it leads. To a little island a few days sail away that most reports suggest is entirely abandoned.

With a promise of buried treasure in the forefront of their minds a small party leaves the cove in search of whatever was so important to one pirate that they would protect the map even after their death.

After the war ends, when they are back home in the cove they've made their own and finally safe from the Pirate King, Hanta and Denki finally get the happy ending they've been waiting for.

This is just a lot of happy fluff, because they deserve it.

A Song of the Siren side fic.