She certainly looked like a demon, perhaps because she was partially of demonic descent. The second character she encountered was Mirajane from Fairy Tail. Mirajane was a charming and benevolent woman affiliated with the Fairy Tail guild. However, when push came to shove, she could be rather formidable.

Her magic, known as Take Over, enabled her to assume different forms. In this instance, she took on the essence of a demonic soul. When the Take Over occurred, she transformed into a fierce and entirely different woman, capable of feats beyond her normal capabilities.

At this moment, Robin had taken on her demonic form. The masked men felt fear for the first time, trembling without knowing how to react. Robin, however, decided to respond on their behalf. She vanished from her position and reappeared beside the men.

She swiftly struck two of them before vanishing once more. Some of the men came to their senses and began firing, but she was far too swift for them to land a hit. And when the bullets did strike her, they simply halted and rebounded.

To the men in suits, all they could conceive was that she was a demon. Meanwhile, Gangster Gastino... I mean... Caesar observed all of this through the video feed, unable to fathom the nature of this Devil fruit power. Though knowledgeable, he had never encountered a Devil fruit with this kind of transformation before.

Perhaps this was an unprecedented Mythical Zoan fruit.

"Monet, go down and compel them to retreat. Use force if necessary," Caesar ordered. Monet was already on her way, so when she heard the command, she sighed. This might escalate into a dire situation, and she awaited backup in the form of Vergo.

Robin soared through the air, even launching dark arrows infused with magic at the men. The men didn't stand a chance, as magic was entirely foreign to them.

Jinbe and Ken later escorted these men to a separate chamber, while Robin reverted to her original form. She had diligently trained in her Take Over abilities and had mastered two demonic forms. Although she knew they weren't as potent as those of her companions, maintaining her own footing was no challenge at all.

The children were allowed to turn. Naturally, some had witnessed Robin's actions and were apprehensive about her transformation. This instilled fear in them, but they chose to keep their observations to themselves. In any case, there weren't many who had witnessed it.

"Robin, take them away," Ken instructed. Nami and Chopper were en route to assess the children and how they had been treated.

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"Understood," Robin replied, retracing their steps. There were three other doors in the room, so Ken proposed that they split up.

"I'll be exploring a bit. You all enjoy yourselves," Ken said. Both Luffy and Jinbe nodded, each heading in a different direction. Ken chose the path from which Monet was approaching. After a brief stroll, appreciating the vast rooms and their adornments, the temperature around him noticeably plummeted.

In the expansive room, a sudden cold gust swept in from nowhere, and snow began to descend, blanketing the surroundings in white within moments. Ken halted in his tracks and waited. Emerging was an exceedingly beautiful woman with wings in place of hands, and long, clawed legs.

She was a true harpy, and even Ken couldn't help but admire her beauty.

"Punisher Kenny, the one the world is hunting. What brings you to this cold, harsh land?" Monet inquired as she strode forward. The cold had grown severe by now, yet somehow, the snow couldn't touch Ken's body.

It was as if the snow evaporated the moment it drew near, and each step he took caused the snow around him to melt swiftly. Monet had observed this too, but didn't know what to make of it.

"Many people are eager to find me. It's nothing new," Ken remarked while studying Monet.

"You seem quite self-assured," Monet remarked.

"In your presence? Undoubtedly," Ken replied with a smile. Monet's once smiling countenance turned fierce, and she regarded Ken with menacing eyes.

"You shouldn't have come here, Punisher Kenny. This is not a place for you," Monet warned.

"Why? Because this place houses Caesar? Or do you truly believe that Doflamingo will persist in his pursuits and think he can conquer the world?" Ken retorted.

"You? How do you know?" Monet stammered, her terror evident.

"It doesn't really matter. So tell me, what's your choice? Step aside so I can proceed with my task, or try to stop me?" Ken inquired. In response, she transformed into a demonic figure made of snow, complete with sharp teeth and enlarged wings.

She launched a direct assault on Ken, flapping her wings to create a snowstorm that bore down on him. Ken remained motionless, allowing the attack to strike. The storm approached swiftly, and since Ken didn't evade, Monet assumed he was somewhat afraid. However, then she witnessed something that left her utterly incredulous.

The storm couldn't even touch Ken's body. There was an invisible force shielding him, causing the storm to transform into water and evaporate. Of course, she wasn't ready to concede defeat. She flew directly at him, aiming to take a bite with her sharp teeth.

Yet, as she drew near, she felt an imperceptible force pushing her back. Initially, the force was slight, but then it surged suddenly in strength, and before she knew it, she was hurled backward. Thankfully, being a Logia, she dispersed herself and emerged unharmed.

"What the hell are you?" Monet shouted as she every attack she had on her books to take him down. Cold spears, Cold blizzard.. Everything. Ken was watching all of this and thinking.

'A waste of a good devil fruit. You don't deserve it.'

Monet after some assault was huffing because she didn't know how to take him down. Ken wasn't even hurt. It was at this time that Ken got bored and took out his sword from his waist.