One Piece: I'm a Demon Clan Member Who Joins the Marines

After Ron, No More Pirates: The Pinnacle of the Navy Genre. Please Recommend Something, I'm Begging You

I’m looking for books similar to One Piece: Everything I Do Is for Justice.

One Piece Power Fantasy: Make It So Satisfying I Die of Bliss

Ever Since I Read About Ron, I’ve Had Hope in the Navy’s Sense of Justice!

I want to read books similar to The Navy's Got Your Back: Whitebeard, He Really Dared to Kill! The protagonist is a Marine who stands for justice!

One Piece Navy Stories: Join the Marines, Be at Least Vice Admiral Level from the Start, and 300,000+ Words

Pure Navy Stories with Sound Values, No Elements from Other Anime or Games

I want to read something similar to The Pirate: My Name Is Sakazuki.

One Piece Novels with a Marine Protagonist

The protagonist should be in the navy, preferably a laid-back type. Very powerful, no harem, and preferably no female lead.

One Piece Fanfiction with a Navy Cast, Where the Protagonist Doesn't Become a Pirate