I Sell Gacha Jars in One Piece

Robin's childhood had carved something into her that never quite healed. She craved warmth and connection with a quiet, desperate intensity, and yet the walls she kept around herself were just as fierce. Having someone treat her so well, so suddenly and without apparent reason, left her feeling more off-balance than she expected.

She had grown used to a certain rhythm in her life. People used each other, and when the usefulness ran out, betrayal followed as naturally as the tide. That was simply how it had always been. Now, with Amon acting like this, she didn't quite know where to put herself. Her feelings were tangled. But she was also curious about these jars of his, so she decided to push everything else aside and see what came out of one. The last thing she needed was to miss another fortune by overthinking it.

"Miss Robin, which one would you like?"

Amon took her berries with a smile and held out the collection for her to choose.

"Thank you. I'll take the white one," Robin said after a moment's consideration, reaching out for a pale jar that had caught her eye. Something about it just felt right to her.

"White it is. One moment, please." Amon smiled.

He lifted a hand, and Lily, reading the cue without needing to be told, used her telekinesis to float the jar neatly into his grip.

"Could you open it for me?" Robin asked.

There was something she couldn't name about Amon, a feeling unlike anything she could place. She wanted him to be the one to open it, as though that might carry some luck into whatever came out.

"Of course. Happy to." Amon gave a small nod, drew the jar back toward himself, and with a single clean motion of his hand, the jar split cleanly into two halves.

"What a sword arm," Kizaru murmured from the side. He could feel that Amon's swordsmanship had sharpened since the last time they crossed paths.

"You flatter me." Amon let out a short laugh, then paid Kizaru no further attention. He tilted the jar and looked inside.

Three items.

He raised an eyebrow. It had been a while since he'd seen three come out in one go. Being one of the story's central figures had its perks, it seemed.

"Three?" Robin blinked. She had assumed one was the standard, since both Fujitora and Crocodile had each gotten exactly one. Seeing three tumble out of her jar left her visibly startled.

"Three indeed," Amon said with a grin. "Looks like Miss Robin is doing quite well for herself. Jars that give out three items are getting rarer and rarer." He paused. "Still, best we check what they actually are before getting too excited. I've learned not to assume."

Robin nodded. "Right, go on then. Tell me what I got."

"Give me just a second."

Amon activated the system's scan and waited as the properties of all three items resolved in front of him.

The first entry appeared.

"Da Vinci's Spy Attaché Case" -- A creation of the great inventor himself. While it presents to all appearances as an ordinary briefcase, it is in fact a concealed personal seat, designed for discreet rest during field operations. It includes a built-in massage function to ease fatigue, allowing the user to recover quietly even in the middle of active duty.

Amon stared at it for a long moment.

Well.

Three items didn't guarantee three good items. The moment he saw Da Vinci's name on the label, he already had a feeling about what was coming, and the feeling had not been wrong. The first item was effectively a loss. Still, at least it wasn't a colorless crystal fragment. That was something. He set it aside and moved on to the second.

"Beauty Elixir" -- Upon consumption, it grants lasting enhancement of one's complexion and halts physical aging, preserving the user's appearance at twenty years of age indefinitely. It also refines the body's skin constitution, leaving it luminous, smooth, and radiant. Universally regarded as the most beloved item among women across countless worlds.

Amon paused at that.

He thought briefly of Makino, back in Windmill Village. She had pulled something similar from her jar, an Age-Preserving Elixir if he remembered correctly. The effects overlapped, but this one seemed a step above, given that it actually reworked the skin's underlying constitution rather than simply maintaining the surface. In practical terms, if Robin ate this, the sun-darkened tone that came with years of life at sea would give way to something entirely different. Clear and glowing, a skin that looked like it had never seen a harsh wind in its life.

Lovely. Robin's luck was holding up better than the first item suggested. He nodded to himself and set the elixir down, turning to the third item.

This one was different in shape from the others. It was a card.

Card-type items had always been the interesting ones. They tended to be activatable, with effects that extended well beyond a single use.

He pulled up its properties.

"Advanced Growable Armament Haki Card" -- Upon use, grants the user a growable form of Armament Haki. Begins at the basic tier upon acquisition, with the capacity to advance to intermediate and eventually advanced tiers through continued training and effort.

A growable Armament Haki card.

Amon let that sink in.

He had opened a fair number of cards over time, and they had always come in fixed tiers. Basic, intermediate, or in rarer cases the advanced tier that had occasionally come from his own special jars. A card that could scale alongside the user was something new.

And Robin, of all people, needed it.

Even twelve years down the line in the original story, after everything the crew had been through, Robin still hadn't developed Armament Haki. It was one of those quiet limitations that dulled her impact as the series went on. Her Devil Fruit ability was quite formidable, but without Haki to back it up, she had largely been reduced to a support role in the New World, where everyone from rookies to veterans walked around wrapped in Haki like it was second nature.

This card changed that picture entirely.

With it, Robin's ceiling had just been raised very high. Even now, Amon had a feeling she could give the former Crocodile a serious fight, and that was before she even had time to properly develop.

Speaking of whom, he should probably stop thinking of her as "Old Sandy" now that she had a new name and a new face.

He set the third item down and looked up.

"Well? How did I do?" Robin asked, eyes bright with nervous anticipation. She was doing her best to appear composed, but the curiosity was written plainly on her face.

The others nearby had drifted closer without quite realizing it, all of them equally intent on hearing what had come out of that jar.