Watching Roger's Execution After Arriving in One Piece

"Over there. Your elbow is too high. Relax a little, and don't keep your body so stiff."

With Observation Haki as an aid, Atlas could clearly see every mistake in everyone's movements and quickly correct them.

Most of their foundations were still decent, but...

Atlas looked toward the female Marine in the front row, who was seriously swinging her sword. Among all the recruits present, her foundation was the most solid, and she was also the one with the greatest hope of comprehending the Iron-Cutting Realm in a short time.

"You, step forward!"

Atlas gestured for the female Marine to step out.

"What is your name?"

"Reporting, sir! Recruit Ain!"

...Ain?

The name sounded familiar. Wasn't she a female swordsman and a Paramecia Return-Return Fruit user?

"Use the sword in your hand and attack me with all your strength."

Atlas didn't think too much about it. Battle was the best and most effective way to gain comprehension, and there was naturally more than one way to comprehend the Iron-Cutting Realm.

"Huh?"

"Yes, sir!"

Ain was stunned at first, but as a soldier, she quickly reacted. The long sword at her waist instantly left its sheath!

Clang!

The sound of metal colliding rang out. Fist and sword met, sending sparks flying in every direction.

"Hiss~"

A tremendous force traveled from the blade to her tiger's mouth. Ain felt her arm go numb. Looking closely, she saw that the previously flawless blade seemed to have developed several nearly imperceptible notches!

Atlas naturally couldn't receive a naked blade with his flesh alone. Without Armament Haki, basically no one could withstand a sharp weapon with their bare body. Even Garp, the ceiling of Hand-to-Hand Combat, couldn't do it!

Of course, Big Mom's Iron Balloon was another matter.

The long sword in Ain's hand was