Black Blade Seven Star Sword

"How long did it take you?"

Hawk-Eye's sharp gaze stared straight into Oak's eyes as he asked a question only Oak could understand.

"I never counted. About ten years, I guess!"

Oak flicked the Seven Star Sword as he answered. Faced with their riddle-like exchange, Nami wore a puzzled expression.

"What are they talking about?"

Nami could not understand at all. She only knew that the man who was both a Shichibukai and the World's Greatest Swordsman seemed especially focused on the green sword in Oak's hand.

But in her eyes, aside from looking rather valuable, there was nothing special about that sword at all!

So she turned her confused gaze toward Robin, the knowledgeable older sister, hoping to get an answer from her. Faced with Nami's wide, blinking eyes, Robin gently shook her head.

"I don't know either!"

Robin did not understand either, but she knew that anything capable of drawing the attention of Hawk-Eye, the World's Greatest Swordsman, could not be ordinary. As she continued listening to their conversation, she studied the Seven Star Sword in Oak's hand.

"To forge your own weapon into a Black Blade... you are one of the strongest swordsmen I have ever seen..."

After a brief pause, Hawk-Eye spoke.

"And I can sense the tremendous power within you. You are a true powerhouse, so..."

As he spoke, Hawk-Eye raised his Black Blade Yoru. Black Blade Yoru, one of the Twelve Supreme Grade Blades, gleamed with cold light.

"Would you like to have a match with me?"

Robin was stunned when she heard Hawk-Eye take the initiative to challenge Oak. If they had not been so close, she would have suspected that she had misheard him.

Hawk-Eye, the World's Greatest Swordsman, had actually taken the initiative to challenge Oak!

And what exactly was a