People Are Sailing: the Opening Has Become Ace's System!

My name is Li Yang, I've become a system, and my host is Ace who just went to sea! My host Ace is an invincible prodigal + super second generation. I originally thought this was a way to defeat monsters and upgrade, but who knew that he would turn it into the travel history of the second generation of kings! Ace: System, my father left behind a broken sword and a broken handbook. Can I exchange them for energy points? Ace: System, the annoying Jabba wants to give me a Phantom Beast Devil Fruit. Do you think I can exchange it for energy points? Ace: System, Rayleigh also gave me some of his Haki manuals, along with a box of Celestial Dragon treasures. I want to exchange them for energy points! Li Yang:...... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.