Above the Sea [One Piece]

(Not a traditional secret-identity story. The heroine makes her proper entrance in Chapter 13.)

(Structured like a series of short episodes.)

(Ace and Sabo appear in Chapter 57. It's completely fine to start reading from there.)

In the space between the living world and the afterlife lies the island of the dead, Mothus. How many people can find their beloved or family there, separated from them by life and death?

Craftsmen who have sailed across the seas tell nothing but lies. Their homeland lies beneath the ocean.

Where do the beautiful fairies come from? Why do their songs sound as if they come from hell? And why did the cloud-shrouded sky island fall?

Why do the proud, cold dragons gather together? A false god listens to the people's suffering, and the strongest "vigilante" is born.

Far beneath the ocean, new fish-men are being born...

A new Tree of Knowledge, and beneath the soil, a people who dwell within the earth...

The Great Pirate Era has begun, and the mysterious New World is starting to unveil itself.

Straightforward synopsis:

A city planner transmigrates across the sea one day and gets bound to an Island Lord System. She gets to work diligently creating people and building infrastructure.

As the island's legends spread across the seas, its mysterious lord becomes a major concern for the World Government.

Then, one day, mysterious peoples of many races gather beneath the Red Line. Facing Marine Headquarters, they welcome the Island Lord.

The Marines: ?

P.S.

The islands include but aren't limited to the ones above, and there may be new ones too. I'm writing this on my phone, and the screen is too small. Please forgive any awkward wording. (Bows.)

P.P.S.

This only crosses over with Pirate King. The pairing is tentatively Sakazuki, though it may be someone else or no pairing at all.

A story about the heroine causing trouble under a secret identity. The main focus is her career, and whether her identity is revealed depends on the romance.

If there is no romance, her identity stays secret, and she remains a cool, aloof Island Lord.

If there is a romance, her identity will be revealed, and she'll expose herself. The ending will be a deranged, obsessive Island Lord and her imprisoned Fleet Admiral.

It all depends on whether Sakazuki can max out the heroine's affection meter (X).

Congratulations to Sakazuki on winning a gal game. Beat it to get a wife, the kind who builds tall towers and little black rooms (not really).

Other romantic routes are also possible.

Theme: Face the sea, and welcome the warmth of spring.