One Piece: A Blood Debt, Slaughter the Celestial Dragons!

Waking up from a deep sleep, Rono transmigrated into the One Piece world.

Originally, he thought he could live a happy and peaceful life.

However, the appearance of the Celestial Dragons shattered this reality!

Right before his very eyes, Rono watched helplessly as his parents were gunned down by the Celestial Dragons!

Driven by extreme rage, Rono awakened the system, swearing to slaughter every single Celestial Dragon!

From that day on, a [Supreme Evil] dedicated to hunting Celestial Dragons was born!

Wherever Rono set foot, the Celestial Dragons trembled in fear!

Marine Admirals?

Bring two more, and I'll still slaughter every last one of you trash!

Garp: "The Supreme Evil?"

'He is a monster created by the hands of the Celestial Dragons themselves. One day, the Celestial Dragons will pay the price for this!'

Roger: "The [King of the Pirates]?"

'Compared to the [Supreme Evil], it is nothing more than fleeting clouds!'

Whitebeard: "The [Strongest Man in the World]?"

'No, no, no, Rono is the truly strongest!'

Rocks: 'When it comes to killing Celestial Dragons, Rono is first, I am second, and everyone else is trash!'