He stared at the pile of stones that had been reduced to dust from dozens of meters high. It felt as though his throat were stuffed with cotton, and he could not say a single word.
That seemingly casual punch had been more terrifying than any bandit's blade he had ever seen.
And combined with what Mu Chen had just said, what did he mean by saying that even an ordinary pirate could master Armament Haki?
"H-How could that be..." Ace's voice trembled, his fingers unconsciously clutching the hem of his clothes.
Mu Chen looked at his pale face and secretly laughed. He kicked the rubble at his feet, and the next moment, Ace suddenly raised his head, the confusion in his eyes replaced by stubborn determination.
"Teacher Mu Chen, teach me. As long as I can learn this, I'll do anything."
Mu Chen was helpless when he heard Ace call him Teacher Mu Chen only at times like this.
After all, when they had first met, Ace had not said a damn thing.
Mu Chen raised an eyebrow and casually replied, "Anything? Including coming back to Foosha Village with me? Other than that, I'm definitely going to sea."
Mu Chen was clearly teasing Ace.
The moment Ace heard that, he was like a cat whose tail had been stepped on. He immediately shook his head.
Mu Chen smiled and suddenly leaped onto a nearby reef. "Still pretty stubborn. There probably aren't any pirates around to disturb us here. Learn the basics of Armament Haki within half a month, and I'll leave without worry. If you can't learn it... then obediently come back with me."
He paused, deliberately dragging out his words before continuing.
Ace looked at the lingering black glow around Mu Chen's fist, and blazing fighting spirit rose