Honkai: Star Rail and One Piece: Me, Firefly, the Straw Hats' Gundam

[One Piece + Firefly from Honkai: Star Rail + SAM Mecha + Frail Girl + Ultimate Contrast + Money-Grubbing Schemer + System]

Good news: Chen Bin transmigrates into the world of One Piece and becomes Firefly from Honkai: Star Rail!

Bad news: He starts out in the late stages of Entropy Loss, with only 1,000 Berries in his account!

Even worse news: With no money to recharge it, the SAM mecha is now just a pile of scrap, and the odds of survival look grim!

System: Want to stay alive? Want to repair the SAM mecha? Then go make some money!

And so,

To stay alive and repair the mecha,

Chen Bin has no choice but to drag his frail girl's body, one that coughs up blood after just a few steps,

and embark on a wild money-making spree in the world of One Piece!

From then on, the Straw Hat crew gains an unusual, sickly strategist who also serves as their treasurer.

Years later,

The Straw Hat crew treasurer's confidential invoices are made public.

Debtor: Roronoa Zoro

Incident: At the Shells Town execution ground, I swallowed a dirt-covered rice ball for him.

Note: 1 billion Berries in emotional-distress damages!

Investment: Monkey D. Luffy

Note: Long-term angel investment. The strongest blue-chip stock on the entire sea!

Mobile power banks: Enel, the Thunder God, and Big Mom

Incident: The Raigo of Skypiea and Zeus of Whole Cake Island

Note: High-voltage fast-charging stations!

Final Battle: Mary Geoise

As the Ancient Weapon “Uranus” unleashes a world-ending laser,

as the entire world awaits destruction in despair,

that silver figure soars into the sky, trailing long green wings of light!

System: Absorbed Uranus's energy. Charge exceeds 1,000%!

SAM Mecha, Final Battle Model, fully unlocked!

“Imu! You haven't paid your debts for eight hundred years... On behalf of every creditor from the old era, I'm here to collect!”

“I'll set the sea ablaze... and reclaim all the ashes (to sell)!”