One Piece : Scum of the Marines
"At a high-level review meeting for the Naval Inspection Department, a stern official glares at the East Blue's newest inspector, Lancelot.
''Inspector Lancelot, explain this!'' the official demands. ''Why do seven different queens from kingdoms across the East Blue have children who bear a... striking, 70-to-80-percent resemblance to you?''
Lancelot, busy admiring a secretary, just yawns.
''Coincidence.''
''Coincidence?!''
''Absolutely,'' Lancelot says, pointing a thumb at the furious Fleet Admiral.
''I mean, I share a good 60-percent resemblance to Admiral Akainu. Does that mean he's my long-lost son?''
An explosion of magma vaporizes the corner of the table.
''I'VE HAD ENOUGH OF THIS PUNK!''
''Ooh, scary~'' Kizaru drawls, holding him back. ''Just endure it a little longer, Sakazuki...''
''You can't beat him, anyway,'' Aokiji mutters from under his sleep mask.
''Then explain this!'' the official snaps, moving on. ''Why do your East Blue marines receive salaries and benefits that rival Headquarters?''
Lancelot scoffs. ''With the original paltry pay, you could barely scrape by. Why would anyone choose this job over being, say, a pirate? I'm just making the job competitive!''
This is the story of Lancelot.
After transmigrating into the body of a 3-meter-tall, famously weak, and cowardly Marine nepo baby, he decides to flip the script.
Armed with a corrupt Vice Admiral father in Mariejois, two overpowered Systems, and a complete lack of shame, Lancelot's journey is just beginning.
His plan? Con an OP swordswoman into joining him (and giving her a Zoan fruit), recruit a 12-million-Beri pirate as his enforcer, and fake being an 'Absolute Justice' psycho.
Lancelot is out to build an empire, get filthy rich, and assemble a 'team' of the most beautiful women in the seas... all while pretending to be the most terrifyingly efficient Marine in the East Blue."