Luffy and others were amazed by this. They didn't expect that such a thing even existed. This was a whole new territory for this.

"So you mean to say that I can only defeat Smokey when I learn this Armament Haki?" Luffy always had a better IQ when it came to fights. All the brain capacity would turn on when there was a fight situations involved.

"Not only Smoker, but also Crocodile. He has Logia Sand-Sand fruit. You will need Haki to defeat him but there is a weakness for him. He can stop his body to elementalise if you attack him with moisture. In other words, if you use punches while your hands are wet, you can beat the shit out of him."

"Really? This is great. Wait for me Crocodile. I will beat the shit out of you."

"So Crocodile has such weakness. Didn't know that." Robin commented.

"I will just beat the shit out of Crocodile.."

"This is totally a new information for me. Haki, huh! Times are getting serious." Sanji lit up a cigarette. He thought with his character alone it would be enough but the world wasn't as simple as he thought.

"I just need to stop Crocodile."

"Alright we know ... Now stop." Zoro gave a smack at the head of Luffy with his hilt. About Observation Haki, he had already known of this as his breathing technique had allowed to learn this quite early.

"There is another type of Haki. This Haki can't be trained and only the few chosen ones have that, only the lucky ones are born with it. It is called Conqueror's Haki. As the name implies, only a conqueror can have that Haki."

"Born with it?"

"Eh? One can't learn it?"

"So weird."

There were discussions and murmurs among the crew. They thought Haki was fundamental but now they came to know that some people are just born lucky.

"Some people are born lucky. Ace here has that." Ken said.

"What? Ace? You are one of the lucky ones? Hahah.." Luffy didn't even think for a second that he might not have the Conqueror's haki and was just happy that his brother had one. Ace seemed a little shy as he heard the praise of his brothers.

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"Luffy you too have it." Ken said as he needed these people to know about their own powers in the journey forward.

"Huh? Me?"

"Luffy you too have it. This is awesome."

"Wow, Luffy you are so lucky."

The crew mates and Ace believed Ken and already accepted that Luffy has Conqueror's Haki as Ken had never been wrong. Everyone congratulated him.

"Luffy isn't the only one who has this. Zoro has it too."

This statement stiffened everyone. They thought having this Haki was incredibly rare but now two of their own crew mates had this. Even Ace was surprised. This Haki was incredibly rare and this was even in his father's crew

"I? How do you know that I have this Conqueror's Haki?"

"A person without that Haki can never defeat Mihawk. You want to be the best in the world. Right?"

"What does this Haki do by the way?"

"Generally, a single move of this Haki would make the people who has lower willpower to faint and that is the basic use of it. But if one needs to stand at the top, he needs to use this Haki just like Armament Haki."

Everyone gulped their throats when they heard the explanation. They didn't expect that someone would faint with just one use of this Haki and only because one didn't have will power. Luffy and Zoro just smiled at this new knowledge.

"What about me? What about me? If this marimo has this, I also must have it." Sanji was agitated when Zoro was named but he wasn't.

"I am sorry Sanji, I don't know about you. You are supposed to have one but you reject your own blood in your own fear and get distracted by women too often."

"Bloodline? What is he talking about?"

"What do you mean Ken?"

Sanji stiffened when he heard that. He looked at Ken with wide eyes as he didn't expect Ken to know of the bloodline secret. He had never spoken of this secret to anyone since he came to East Blue but it seemed like Ken knew of it.

"You.. You.. You know of my father?" Sanji was shaking as he asked that. His voice croaked and he gritted his teeth in anger.

"Personally? No. But I have heard of him. Luffy can be dumb enough to invite people but someone needs to make sure that the person who enters the ship are legitimate enough."

"Oye, Ken what are you talking about? Is there something wrong with Sanji?" Luffy was confused and so were the others.

"Then if you knew, why did you let me in?" Sanji clenched his fists. He was ready to leave the crew if he was asked to. He knew his past and he was ready to face the axe for it.

"Your birth doesn't define you. Your actions do. You refuse your own powers just because you hate your father and brothers, just like my brother Ace."

"Why am I being brought here?" Ace shouted. Everyone turned their heads at Ace as they were curious what Ken meant. Ken had been unloading one bombs after another and it was blowing the minds of the people.

First Haki, second was the mysterious family of Sanji and now there was a third one related to Ace.

"You know who your actual father is, but you refuse to acknowledge that and go after his rival."

"Ace's father? Isn't Luffy's father also Ace's father?" Nami asked.

"No. Ace's father was Roger, the Pirate King." Luffy spilled the secrets instantly, Ace got angry at this and started pulling the cheek of Luffy in anger and in retaliation Luffy too pulled Ace's cheek which soon turned into a brawl.

While the brawl continued, everyone in the crew were sweating. Ace was the son of Gol D. Roger. What the hell was up with these brothers?