One Piece: I Get Stronger Whenever You Suffer. Mad About It?

Hey, I'm a transmigrator. I know everything, and I've got a System too. If you're upset, I'll get stronger. So tell me, does that make you mad?

Haixi: Sengoku, you only have one Sky Person.

Sengoku: What? How could you know that?

Haixi: Garp, your grandson is Roger's son.

Garp: How could anyone possibly know that?

Haixi: Doflamingo? Shouldn't I call you Saint Donquixote Doflamingo?

Mingo: What? How could anyone know my biggest secret?

Haixi: There are only a few things in this world I don't know. Now hand over your crisis points, all of you!

This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.